Pith Number

pith:NNBK3RIF

pith:2015:NNBK3RIFHRPSQRQXYJL2SOJH2O

not attested not anchored not stored refs pending

Strong coincidence and Overlap coincidence

Shigeki Akiyama

arxiv:1509.04471 v1 · 2015-09-15 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NNBK3RIFHRPSQRQXYJL2SOJH2O}

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	2026-05-18T01:32:58.824113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b42adc5053c5f284617c257a93927d399939d79120c4e7d896ade4e815fc824

Aliases

arxiv: 1509.04471 · arxiv_version: 1509.04471v1 · doi: 10.48550/arxiv.1509.04471 · pith_short_12: NNBK3RIFHRPS · pith_short_16: NNBK3RIFHRPSQRQX · pith_short_8: NNBK3RIF

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/NNBK3RIFHRPSQRQXYJL2SOJH2O \
  | 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: 6b42adc5053c5f284617c257a93927d399939d79120c4e7d896ade4e815fc824

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b9a63448add0aa9333265e3a04dd462c7a5936f87604210add088378fbc7a65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-09-15T09:58:26Z",
    "title_canon_sha256": "55f3e6819e7c9a8faa312769b81a99ebd0f0435e7942ef73a985243c2dfa1799"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04471",
    "kind": "arxiv",
    "version": 1
  }
}