Pith Number

pith:EKW6SW6H

pith:2011:EKW6SW6HQSZK43XIPWHLA7C4GN

not attested not anchored not stored refs pending

IVOA Recommendation: Data Model for Astronomical DataSet Characterisation

Alberto Micol, Anita Richards, Francois Bonnarel, Igor Chilingarian, Jonathan McDowell, Mireille Louys, the IVOA Data Model Working Group

arxiv:1111.2281 v1 · 2011-11-09 · 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{EKW6SW6HQSZK43XIPWHLA7C4GN}

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	2026-05-17T23:45:41.820476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22ade95bc784b2ae6ee87d8eb07c5c337ed9df17f16df4ed78166071bc09a9b6

Aliases

arxiv: 1111.2281 · arxiv_version: 1111.2281v1 · doi: 10.48550/arxiv.1111.2281 · pith_short_12: EKW6SW6HQSZK · pith_short_16: EKW6SW6HQSZK43XI · pith_short_8: EKW6SW6H

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/EKW6SW6HQSZK43XIPWHLA7C4GN \
  | 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: 22ade95bc784b2ae6ee87d8eb07c5c337ed9df17f16df4ed78166071bc09a9b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3fd7102237c71e3f50f631cd5085387c5e8d50ba499c973a8ae507c89447b21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-11-09T17:28:30Z",
    "title_canon_sha256": "4486c2055c4d39f3f999f254c27b65bad3a3a3244dd5a074b122a1609da2b0aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2281",
    "kind": "arxiv",
    "version": 1
  }
}