Pith Number

pith:7O2WY55P

pith:2017:7O2WY55P2HT2ITPDZYCTP2RMNW

not attested not anchored not stored refs pending

Size Relationships in Abstract Cyclic Entailment Systems

James Brotherston, Reuben N. S. Rowe

arxiv:1702.03981 v1 · 2017-02-13 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7O2WY55P2HT2ITPDZYCTP2RMNW}

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	2026-05-18T00:50:49.417533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbb56c77afd1e7a44de3ce0537ea2c6d823f9c8368ccc8b71c6d8f4a685ec359

Aliases

arxiv: 1702.03981 · arxiv_version: 1702.03981v1 · doi: 10.48550/arxiv.1702.03981 · pith_short_12: 7O2WY55P2HT2 · pith_short_16: 7O2WY55P2HT2ITPD · pith_short_8: 7O2WY55P

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/7O2WY55P2HT2ITPDZYCTP2RMNW \
  | 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: fbb56c77afd1e7a44de3ce0537ea2c6d823f9c8368ccc8b71c6d8f4a685ec359

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a42b7b9c17726149b5d6832349826f36f01fb38c4adc7b5f5258a474bfa1f350",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-02-13T20:43:55Z",
    "title_canon_sha256": "560ebb85b226f0753054e839b713ade98e4557a915b92964fe7759efcbf0e3b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03981",
    "kind": "arxiv",
    "version": 1
  }
}