Pith Number

pith:5ECOZO2U

pith:2023:5ECOZO2UWV6XN2AFZCQSSPXYWZ

not attested not anchored not stored refs pending

Known by the Company it Keeps: Proximity-Based Indexing for Physical Content in Archival Repositories

Douglas W. Oard

arxiv:2305.18683 v3 · 2023-05-30 · cs.DL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5ECOZO2UWV6XN2AFZCQSSPXYWZ}

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	2026-07-05T06:30:07.155776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e904ecbb54b57d76e805c8a1293ef8b66d414c3dc2ea397dbfdb26ce9e20ba32

Aliases

arxiv: 2305.18683 · arxiv_version: 2305.18683v3 · doi: 10.48550/arxiv.2305.18683 · pith_short_12: 5ECOZO2UWV6X · pith_short_16: 5ECOZO2UWV6XN2AF · pith_short_8: 5ECOZO2U

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/5ECOZO2UWV6XN2AFZCQSSPXYWZ \
  | 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: e904ecbb54b57d76e805c8a1293ef8b66d414c3dc2ea397dbfdb26ce9e20ba32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f01b5e6d0fd571fb3f0e2638549222880cfa8bcf7fbd94e62d4633adbaf2cfe",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2023-05-30T01:47:50Z",
    "title_canon_sha256": "97d8b3c15fd2441a775af64a751372a5303ad7cc6a798c864ea94bee04af9006"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.18683",
    "kind": "arxiv",
    "version": 3
  }
}