Pith Number

pith:7CFMHQKY

pith:2013:7CFMHQKYTY7QJ64EYJVUM4UGMU

not attested not anchored not stored refs pending

Extragalactic Nova Populations

A. W. Shafter, C. Curtin, C. J. Pritchet, M. F. Bode, M. J. Darnley

arxiv:1307.2296 v1 · 2013-07-08 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CFMHQKYTY7QJ64EYJVUM4UGMU}

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	2026-05-18T03:18:52.923545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f88ac3c1589e3f04fb84c26b46728665090e65a64fd09c646a3770bbc75c9b3a

Aliases

arxiv: 1307.2296 · arxiv_version: 1307.2296v1 · doi: 10.48550/arxiv.1307.2296 · pith_short_12: 7CFMHQKYTY7Q · pith_short_16: 7CFMHQKYTY7QJ64E · pith_short_8: 7CFMHQKY

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/7CFMHQKYTY7QJ64EYJVUM4UGMU \
  | 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: f88ac3c1589e3f04fb84c26b46728665090e65a64fd09c646a3770bbc75c9b3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "578340725bacf82119d8a5c83e2bde3f8cef0de809d198b20dfa83442e076947",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-07-08T22:59:05Z",
    "title_canon_sha256": "ce5f4a142395f76abb54cf123cc11591b797a4e50bd29fc92c3d9d7d736afa22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2296",
    "kind": "arxiv",
    "version": 1
  }
}