Pith Number

pith:PU2OQTY7

pith:2013:PU2OQTY7NASEN7BTH5OHUE2OSK

not attested not anchored not stored refs pending

A Syntactic-Semantic Approach to Incremental Verification

Antonio Filieri, Carlo Ghezzi, Dino Mandrioli, Domenico Bianculli

arxiv:1304.8034 v2 · 2013-04-30 · 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{PU2OQTY7NASEN7BTH5OHUE2OSK}

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	2026-05-18T03:26:42.297378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d34e84f1f682446fc333f5c7a134e92bcdbce662d57b0a80422faab0a1d7f4c

Aliases

arxiv: 1304.8034 · arxiv_version: 1304.8034v2 · doi: 10.48550/arxiv.1304.8034 · pith_short_12: PU2OQTY7NASE · pith_short_16: PU2OQTY7NASEN7BT · pith_short_8: PU2OQTY7

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/PU2OQTY7NASEN7BTH5OHUE2OSK \
  | 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: 7d34e84f1f682446fc333f5c7a134e92bcdbce662d57b0a80422faab0a1d7f4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65b46d93468cc0b16e3e0d0410c7323da72f76f0bd6cc4b42f578c32abeb300c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2013-04-30T15:30:50Z",
    "title_canon_sha256": "260e92fa3c99178558c3b6e4a87889ffe2a7165a485afa3dce1bf007ab56a730"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.8034",
    "kind": "arxiv",
    "version": 2
  }
}