Pith Number

pith:BHNXWAB6

pith:2012:BHNXWAB6BU4AKX53RO2XCLMZCG

not attested not anchored not stored refs pending

Gerbert of Aurillac: astronomy and geometry in tenth century Europe

Costantino Sigismondi

arxiv:1201.6094 v3 · 2012-01-30 · 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{BHNXWAB6BU4AKX53RO2XCLMZCG}

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	2026-05-18T01:58:38.415624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09db7b003e0d38055fbb8bb5712d9911bfbd4ce4fdf020c97e69e0a7bde7e509

Aliases

arxiv: 1201.6094 · arxiv_version: 1201.6094v3 · doi: 10.48550/arxiv.1201.6094 · pith_short_12: BHNXWAB6BU4A · pith_short_16: BHNXWAB6BU4AKX53 · pith_short_8: BHNXWAB6

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/BHNXWAB6BU4AKX53RO2XCLMZCG \
  | 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: 09db7b003e0d38055fbb8bb5712d9911bfbd4ce4fdf020c97e69e0a7bde7e509

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0f0ed2d820bb6684275b337e87c664c4324c6bcc1de0829b57bbb8fa588b060",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2012-01-30T01:11:33Z",
    "title_canon_sha256": "b7cff1bb4e87a0deb203ea6fd89005f5c4bf78d2443509ac72eaa35b3fd8d5e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6094",
    "kind": "arxiv",
    "version": 3
  }
}