Pith Number

pith:Y3HKOULG

pith:2011:Y3HKOULGPLICHGZIOBQKAFTNTH

not attested not anchored not stored refs pending

L'Epistolario di Gerberto, papa astronomo

Costantino Sigismondi

arxiv:1106.2513 v1 · 2011-06-13 · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y3HKOULGPLICHGZIOBQKAFTNTH}

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	2026-05-18T04:20:05.692709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6cea751667ad0239b287060a0166d99d33ecb219e9516a8d65f25fd06528199

Aliases

arxiv: 1106.2513 · arxiv_version: 1106.2513v1 · doi: 10.48550/arxiv.1106.2513 · pith_short_12: Y3HKOULGPLIC · pith_short_16: Y3HKOULGPLICHGZI · pith_short_8: Y3HKOULG

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/Y3HKOULGPLICHGZIOBQKAFTNTH \
  | 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: c6cea751667ad0239b287060a0166d99d33ecb219e9516a8d65f25fd06528199

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bc9c79d3e586a97a3f32850a88e58d3133d8e29dcdf6ef5ac2fedde53217177",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2011-06-13T18:39:18Z",
    "title_canon_sha256": "3bd3c0760d52076e8f3176467f25a4283de69c24334fdba8d7b4e9ee6488603e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2513",
    "kind": "arxiv",
    "version": 1
  }
}