Pith Number

pith:3CFZUV2I

pith:2012:3CFZUV2IRNBH4JGS4IMJL56L57

not attested not anchored not stored refs pending

Dungal Letterato E Astronomo. Note di stilistica e di astronomia sulla Lettera a Carlo Magno circa le eclissi di sole dell'810

Costantino Sigismondi, Paolo Zanna

arxiv:1211.3687 v1 · 2012-11-15 · 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{3CFZUV2IRNBH4JGS4IMJL56L57}

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	2026-05-18T03:40:39.066870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d88b9a57488b427e24d2e21895f7cbefedea178cc5bfb3c504228ab320f2818e

Aliases

arxiv: 1211.3687 · arxiv_version: 1211.3687v1 · doi: 10.48550/arxiv.1211.3687 · pith_short_12: 3CFZUV2IRNBH · pith_short_16: 3CFZUV2IRNBH4JGS · pith_short_8: 3CFZUV2I

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/3CFZUV2IRNBH4JGS4IMJL56L57 \
  | 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: d88b9a57488b427e24d2e21895f7cbefedea178cc5bfb3c504228ab320f2818e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f5af59f2a05a78c2d1be15ba69aa937c888db677b851a5eece65dfa3658d618",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2012-11-15T18:20:10Z",
    "title_canon_sha256": "5085e2f8f185294c31dfe04dca4ae441d7d016b26c68412df59cfb9dd8894c25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3687",
    "kind": "arxiv",
    "version": 1
  }
}