Pith Number

pith:4QWZUNBO

pith:2018:4QWZUNBOEEVXLUX7ZKPRPVVEK3

not attested not anchored not stored refs pending

Traceability in the Wild: Automatically Augmenting Incomplete Trace Links

Jacob Rendall, Jane Cleland-Huang, Jin L.C. Guo, Michael Rath, Patrick Maeder

arxiv:1804.02433 v1 · 2018-04-06 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QWZUNBOEEVXLUX7ZKPRPVVEK3}

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	2026-05-18T00:18:59.523881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e42d9a342e212b75d2ffca9f17d6a456f853701eb6f27a029f7fdcde300f9bc7

Aliases

arxiv: 1804.02433 · arxiv_version: 1804.02433v1 · doi: 10.48550/arxiv.1804.02433 · pith_short_12: 4QWZUNBOEEVX · pith_short_16: 4QWZUNBOEEVXLUX7 · pith_short_8: 4QWZUNBO

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/4QWZUNBOEEVXLUX7ZKPRPVVEK3 \
  | 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: e42d9a342e212b75d2ffca9f17d6a456f853701eb6f27a029f7fdcde300f9bc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a851113563d4e37e8b3d1d7149c810e91c691665ba6346189ac8e8a0be03bf9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-04-06T19:24:20Z",
    "title_canon_sha256": "e5e9d440591ced2e54af454d2a8e221e51f665cf4eea0d93faa89a2430b6a5ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02433",
    "kind": "arxiv",
    "version": 1
  }
}