multicodec — Greenflagged

JavaScript implementation of the multicodec specification

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures gitHead linked

Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.

Maintainers

daviddiasvmxmikealhugomrdiasachingbrainhacdias

Keywords

IPFSmultiformatsmulticodecbinarypackedthedata!

Accepted risks

Findings the reviewer chose to accept rather than block on.

Source	Rule	Reason	Accepted by	When
source-diff	source-size-tripled	AI (source-diff): Size increase is from adding TypeScript .d.ts declaration files for the codec table; expected for this package.	ai	2026/04/24
source-diff	obfuscated-file:dist/src/generated-types.d.ts	AI (source-diff): Auto-generated TypeScript declaration file with long union types for codec constants; not obfuscated.	ai	2026/04/24
source-diff	obfuscated-file:dist/src/index.d.ts	AI (source-diff): Auto-generated TypeScript declaration file with long union types for codec names; not obfuscated.	ai	2026/04/24
source-diff	obfuscated-file:dist/src/int-table.d.ts	AI (source-diff): Auto-generated TypeScript declaration file for codec int-table mappings; not obfuscated.	ai	2026/04/24
source-diff	obfuscated-file:dist/src/print.d.ts	AI (source-diff): Auto-generated TypeScript declaration file for codec print mappings; not obfuscated.	ai	2026/04/24
source-diff	obfuscated-file:src/generated-types.d.ts	AI (source-diff): Auto-generated TypeScript declaration file with long union type of codec constants; not obfuscated. Comment says generated by tools/update-table.js.	ai	2026/04/24
source-diff	obfuscated-file:dist/src/maps.d.ts	AI (source-diff): Auto-generated TypeScript type map declaration for codec constants; long lines from many entries, not obfuscation.	ai	2026/04/24
source-diff	obfuscated-file:src/generated-types.ts	AI (source-diff): Auto-generated TypeScript type union file from tools/update-table.js. Long lines are codec constant name unions, not obfuscation. Stable for this package.	ai	2026/04/24
provenance	publisher-changed	AI (provenance): achingbrain is a known IPFS/multiformats maintainer listed as contributor; legitimate team transition from hacdias.	ai	2026/04/23

Versions (showing 45 of 45)

Version	Deps	Published
3.2.1	2 / 5	2021-09-02
3.2.0	2 / 5	2021-08-30
3.1.1	2 / 5	2021-08-24
3.1.0	2 / 5	2021-06-24
3.0.1	2 / 4	2021-03-02
3.0.0	2 / 3	2021-03-02
2.1.3	2 / 3	2021-03-02
2.1.2	2 / 4	2021-03-02
2.1.1	2 / 4	2021-03-02
2.1.0	2 / 3	2020-12-11
2.0.4	2 / 3	2020-12-11
2.0.3	2 / 3	2020-12-11
2.0.2	2 / 3	2020-12-11
2.0.1	2 / 3	2020-09-07
2.0.0	2 / 3	2020-07-31
1.0.4	2 / 5	2020-07-21
1.0.3	2 / 5	2020-06-27
1.0.2	2 / 5	2020-06-16
1.0.1	2 / 5	2020-03-16
1.0.0	1 / 5	2019-12-23
0.5.7	1 / 5	2019-12-22
0.5.6	1 / 5	2019-12-05
0.5.5	1 / 4	2019-07-29
0.5.4	1 / 4	2019-07-16
0.5.3	1 / 4	2019-05-28
0.5.1	1 / 4	2019-04-19
0.5.0	1 / 4	2019-01-24
0.4.0	1 / 4	2019-01-08
0.3.0	1 / 4	2018-12-18
0.2.7	1 / 4	2018-06-06
0.2.6	1 / 4	2018-01-20
0.2.5	1 / 4	2017-10-11
0.2.4	1 / 4	2017-10-06
0.2.3	1 / 4	2017-10-06
0.1.9	1 / 4	2017-08-29
0.1.8	1 / 4	2017-07-12
0.1.7	1 / 3	2017-03-16
0.1.6	1 / 3	2017-03-15
0.1.5	1 / 3	2017-02-09
0.1.4	1 / 3	2017-02-09
0.1.3	1 / 3	2016-12-30
0.1.2	1 / 3	2016-12-06
0.1.1	1 / 3	2016-12-06
0.1.0	1 / 3	2016-10-02
0.0.1	1 / 2	2016-09-26

v3.2.1

2 findings

HIGH Publisher changed: hacdias → achingbrain (on 2021-09-02) provenance

This version was published by a different npm account than previous versions on 2021-09-02. This could indicate a legitimate maintainer transition or an account compromise.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v3.2.0

2 findings

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

INFO Publisher changed: achingbrain → hacdias (on 2021-08-30) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2021-08-30. This could indicate a legitimate maintainer transition or an account compromise.

v3.1.1

2 findings

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

INFO Publisher changed: hacdias → achingbrain (on 2021-08-24) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2021-08-24. This could indicate a legitimate maintainer transition or an account compromise.

v3.1.0

2 findings

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

INFO Publisher changed: hugomrdias → hacdias (on 2021-06-24) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2021-06-24. This could indicate a legitimate maintainer transition or an account compromise.

v3.0.1

3 findings

HIGH New obfuscated file: src/generated-types.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: dist/src/maps.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v3.0.0

3 findings

HIGH New obfuscated file: src/generated-types.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

INFO Publisher changed: hacdias → hugomrdias (on 2021-03-02) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2021-03-02. This could indicate a legitimate maintainer transition or an account compromise.

v2.1.3

3 findings

HIGH New obfuscated file: dist/src/int-table.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: dist/src/print.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.1.2

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.1.1

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.1.0

2 findings

HIGH New obfuscated file: dist/src/generated-types.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.0.4

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.0.3

5 findings

HIGH New obfuscated file: dist/src/generated-types.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: dist/src/index.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: dist/src/int-table.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: dist/src/print.d.ts source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.0.2

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.0.1

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v2.0.0

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.