Pith Number

pith:KFCOKY73

pith:2018:KFCOKY73O7OWQF7TGGZG6KPDHC

not attested not anchored not stored refs pending

Recording Concerns in Source Code Using Annotations

Jaroslav Porub\"an, Mat\'u\v{s} Sul\'ir, Milan Nos\'a\v{l}

arxiv:1808.03576 v1 · 2018-08-10 · cs.SE · cs.PL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KFCOKY73O7OWQF7TGGZG6KPDHC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:08:24.625038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5144e563fb77dd6817f331b26f29e3388378186d282a8da8350357dbffc12afd

Aliases

arxiv: 1808.03576 · arxiv_version: 1808.03576v1 · doi: 10.48550/arxiv.1808.03576 · pith_short_12: KFCOKY73O7OW · pith_short_16: KFCOKY73O7OWQF7T · pith_short_8: KFCOKY73

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/KFCOKY73O7OWQF7TGGZG6KPDHC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5144e563fb77dd6817f331b26f29e3388378186d282a8da8350357dbffc12afd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbf1799ac13bd6b7a8df89163b4b19a2d3fcbd9c48a48b3b5b422f29e197b0fa",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-08-10T15:05:06Z",
    "title_canon_sha256": "cd3f8ea9087638d91b3c35fc7edffcb20b2d386900f6c602bcf44a322b1a2e38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03576",
    "kind": "arxiv",
    "version": 1
  }
}