Pith Number

pith:UDAE3PID

pith:2007:UDAE3PIDD4BSWG2KFVRZRF2TUI

not attested not anchored not stored refs pending

Contextual Information Retrieval based on Algorithmic Information Theory and Statistical Outlier Detection

David Camacho, Francisco de Borja Rodriguez, Manuel Cebrian, Rafael Martinez

arxiv:0711.4388 v1 · 2007-11-27 · cs.IR · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UDAE3PIDD4BSWG2KFVRZRF2TUI}

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	2026-05-18T00:58:48.775208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c04dbd031f032b1b4a2d63989753a20d96470b4666c923c069ad211d05158f

Aliases

arxiv: 0711.4388 · arxiv_version: 0711.4388v1 · doi: 10.48550/arxiv.0711.4388 · pith_short_12: UDAE3PIDD4BS · pith_short_16: UDAE3PIDD4BSWG2K · pith_short_8: UDAE3PID

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/UDAE3PIDD4BSWG2KFVRZRF2TUI \
  | 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: a0c04dbd031f032b1b4a2d63989753a20d96470b4666c923c069ad211d05158f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc121d5378c1d764ca252b7e3b0f2b6f4d6766ca4db0459ef28357ac570b9acc",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IR",
    "submitted_at": "2007-11-27T23:58:49Z",
    "title_canon_sha256": "7cc4176c9771ec6e765b2e2b2a51f30859135d347b1856aa527a1d36ffcc6613"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4388",
    "kind": "arxiv",
    "version": 1
  }
}