Pith Number

pith:BEIVCMZS

pith:2011:BEIVCMZSSWUHD7OF52UB4O7FF4

not attested not anchored not stored refs pending

Evolution of the IVOA Characterisation Data Model

Francois Bonnarel, Igor Chilingarian, Mireille Louys

arxiv:1112.5193 v1 · 2011-12-21 · 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{BEIVCMZSSWUHD7OF52UB4O7FF4}

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	2026-05-18T04:05:48.064998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

091151333295a871fdc5eea81e3be52f0c05932afb9407a55deb3a98fb499183

Aliases

arxiv: 1112.5193 · arxiv_version: 1112.5193v1 · doi: 10.48550/arxiv.1112.5193 · pith_short_12: BEIVCMZSSWUH · pith_short_16: BEIVCMZSSWUHD7OF · pith_short_8: BEIVCMZS

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/BEIVCMZSSWUHD7OF52UB4O7FF4 \
  | 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: 091151333295a871fdc5eea81e3be52f0c05932afb9407a55deb3a98fb499183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0bf4867e26ed472524d4e5b5397b6a6ece53ebc4b4cfee01258b4e8bb9a47bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-12-21T22:25:17Z",
    "title_canon_sha256": "8764784ea2cb6871c41922282e0ca837e7720ae2ab7b20265680d587b1a230b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.5193",
    "kind": "arxiv",
    "version": 1
  }
}