Pith Number

pith:JCYBHHF2

pith:2012:JCYBHHF2JUZIDCMZU65WF7WXGH

not attested not anchored not stored refs pending

Cumulative Oxygen Abundances of Spiral Galaxies

Marshall L. McCall, Stuart Dack

arxiv:1204.1744 v1 · 2012-04-08 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JCYBHHF2JUZIDCMZU65WF7WXGH}

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	2026-05-18T03:56:47.326562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48b0139cba4d32818999a7bb62fed731c18c75efcb29eb4cfec802b7d16eff4f

Aliases

arxiv: 1204.1744 · arxiv_version: 1204.1744v1 · doi: 10.48550/arxiv.1204.1744 · pith_short_12: JCYBHHF2JUZI · pith_short_16: JCYBHHF2JUZIDCMZ · pith_short_8: JCYBHHF2

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/JCYBHHF2JUZIDCMZU65WF7WXGH \
  | 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: 48b0139cba4d32818999a7bb62fed731c18c75efcb29eb4cfec802b7d16eff4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32f4fb49069bae0d882c1c98f3ee7d71a81d85a0f3cec41812af656daf4154d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-08T16:52:23Z",
    "title_canon_sha256": "045baee5b29754e88c83fd25403a56154fc8e5a4e16aec074fc23f9020bf670e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1744",
    "kind": "arxiv",
    "version": 1
  }
}