Pith Number

pith:2M3C4D25

pith:2013:2M3C4D25I2ANC7FQPLP44ECJMD

not attested not anchored not stored refs pending

Computable Compressed Matrices

Crysttian Arantes Paix\~ao, Fl\'avio Code\c{c}o Coelho

arxiv:1303.0270 v1 · 2013-03-01 · cs.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{2M3C4D25I2ANC7FQPLP44ECJMD}

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	2026-05-18T03:32:06.436908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3362e0f5d4680d17cb07adfce104960c2362176c6fc0d6ade21a33b1b9b8525

Aliases

arxiv: 1303.0270 · arxiv_version: 1303.0270v1 · doi: 10.48550/arxiv.1303.0270 · pith_short_12: 2M3C4D25I2AN · pith_short_16: 2M3C4D25I2ANC7FQ · pith_short_8: 2M3C4D25

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/2M3C4D25I2ANC7FQPLP44ECJMD \
  | 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: d3362e0f5d4680d17cb07adfce104960c2362176c6fc0d6ade21a33b1b9b8525

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55124763ee9b2f3e6a90bb79215e8e9d32086f18b1946dcf27208829ed8e1857",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-03-01T20:34:41Z",
    "title_canon_sha256": "2b9f349a0c9a98b24b055ba1c9c523593a3ec6b8242a414e761726634b7f5d82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0270",
    "kind": "arxiv",
    "version": 1
  }
}