Pith Number

pith:O7CLFRCY

pith:2009:O7CLFRCYU474YARMZURR23S6GA

not attested not anchored not stored refs pending

Loading Arbitrary Knowledge Bases in Matrix Browser

Christoph Kunz, Saqib Saeed

arxiv:0906.5608 v1 · 2009-06-30 · cs.IR · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7CLFRCYU474YARMZURR23S6GA}

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	2026-05-18T03:55:56.398053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77c4b2c458a73fcc022ccd231d6e5e3033f73c69b417920a0e94ff52f1592a0d

Aliases

arxiv: 0906.5608 · arxiv_version: 0906.5608v1 · doi: 10.48550/arxiv.0906.5608 · pith_short_12: O7CLFRCYU474 · pith_short_16: O7CLFRCYU474YARM · pith_short_8: O7CLFRCY

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/O7CLFRCYU474YARMZURR23S6GA \
  | 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: 77c4b2c458a73fcc022ccd231d6e5e3033f73c69b417920a0e94ff52f1592a0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "739faa95bb7e3f6a70d4d432dbdaa0f6a5240e88387d41fb5246131b6e5da0d7",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2009-06-30T18:42:59Z",
    "title_canon_sha256": "b4c0f7ae95a993b55aa2f7709ecb70e86677631bfb90145aeedd2417841e9344"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5608",
    "kind": "arxiv",
    "version": 1
  }
}