Pith Number

pith:DQNMPXIN

pith:2012:DQNMPXINGQZYJKGCRV4DMYUVRB

not attested not anchored not stored refs pending

Finding the First Cosmic Explosions I: Pair-Instability Supernovae

Aimee L. Hungerford, Alexander Heger, C. C. Lovekin, Chris L. Fryer, Daniel E. Holz, Daniel J. Whalen, Jarrett L. Johnson, Joseph Smidt, Lucille H. Frey, Massimo Stiavelli, S. E. Woosley, Wesley Even

arxiv:1211.4979 v4 · 2012-11-21 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DQNMPXINGQZYJKGCRV4DMYUVRB}

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	2026-05-18T01:53:02.060817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c1ac7dd0d343384a8c28d78366295887958257a143ff33915013ea9d0177711

Aliases

arxiv: 1211.4979 · arxiv_version: 1211.4979v4 · doi: 10.48550/arxiv.1211.4979 · pith_short_12: DQNMPXINGQZY · pith_short_16: DQNMPXINGQZYJKGC · pith_short_8: DQNMPXIN

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/DQNMPXINGQZYJKGCRV4DMYUVRB \
  | 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: 1c1ac7dd0d343384a8c28d78366295887958257a143ff33915013ea9d0177711

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f1bc567fad50db27aceb8c784cbe07e794cf70a33c34cb1770d7093343efa71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-21T10:06:49Z",
    "title_canon_sha256": "9a8c60ad77f28ca869c1a3e17dc19c96cbfe902c4cad846ca4f6af92106d0b53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4979",
    "kind": "arxiv",
    "version": 4
  }
}