Pith Number

pith:NNTTJK77

pith:2013:NNTTJK77YHQGOXNYY4NYJJ2767

not attested not anchored not stored refs pending

A 2-chain can interlock with an open 10-chain

Bin Lu, Jianyuan K. Zhong, Joseph O'Rourke

arxiv:1308.4186 v1 · 2013-08-19 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NNTTJK77YHQGOXNYY4NYJJ2767}

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	2026-05-18T03:15:33.528240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b6734abffc1e0675db8c71b84a75ff7edfc5131e93efa36996718de203b7a36

Aliases

arxiv: 1308.4186 · arxiv_version: 1308.4186v1 · doi: 10.48550/arxiv.1308.4186 · pith_short_12: NNTTJK77YHQG · pith_short_16: NNTTJK77YHQGOXNY · pith_short_8: NNTTJK77

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/NNTTJK77YHQGOXNYY4NYJJ2767 \
  | 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: 6b6734abffc1e0675db8c71b84a75ff7edfc5131e93efa36996718de203b7a36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76b9692fe35ae745c0d02903b4941c1fb29631e92a5b6b792dd29986ed0190a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-08-19T22:36:04Z",
    "title_canon_sha256": "e9ab4cb9333a4640d703148d0e5530f0753ef1b6315744019e49c874792836ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4186",
    "kind": "arxiv",
    "version": 1
  }
}