Pith Number

pith:C4FF24KD

pith:2009:C4FF24KDBGOKDY3V2G26WTMDFX

not attested not anchored not stored refs pending

The National Library of Argentina: exhibiting astronomy-related rare books

Alejandro Gangui

arxiv:0911.0298 v1 · 2009-11-02 · physics.hist-ph · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4FF24KDBGOKDY3V2G26WTMDFX}

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	2026-05-18T00:05:08.317156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

170a5d7143099ca1e375d1b5eb4d832dea37d6e81843da53c1763ee255d94246

Aliases

arxiv: 0911.0298 · arxiv_version: 0911.0298v1 · doi: 10.48550/arxiv.0911.0298 · pith_short_12: C4FF24KDBGOK · pith_short_16: C4FF24KDBGOKDY3V · pith_short_8: C4FF24KD

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/C4FF24KDBGOKDY3V2G26WTMDFX \
  | 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: 170a5d7143099ca1e375d1b5eb4d832dea37d6e81843da53c1763ee255d94246

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec968f7a488c47fc95b47586b7cd93f399e2875c09b5136e35089c4d3a61ab83",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2009-11-02T12:46:06Z",
    "title_canon_sha256": "b1fe2fd0f497f0e9fa78f95a821ed987b6bb8eef72b3c942518af3b7034a6f44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0298",
    "kind": "arxiv",
    "version": 1
  }
}