Pith Number

pith:IDUXQ7HE

pith:2012:IDUXQ7HES5RQ3Q6JB2BJTS47JD

not attested not anchored not stored refs pending

Finding the First Cosmic Explosions II: Core-Collapse Supernovae

Alexander Heger, Candace C. Joggerst, Chris L. Fryer, Daniel E. Holz, Daniel J. Whalen, Massimo Stiavelli

arxiv:1209.5459 v4 · 2012-09-25 · 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{IDUXQ7HES5RQ3Q6JB2BJTS47JD}

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	2026-05-18T01:54:19.241873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40e9787ce497630dc3c90e8299cb9f48ebbfabdf72155f9aa6bce19ed1154fd2

Aliases

arxiv: 1209.5459 · arxiv_version: 1209.5459v4 · doi: 10.48550/arxiv.1209.5459 · pith_short_12: IDUXQ7HES5RQ · pith_short_16: IDUXQ7HES5RQ3Q6J · pith_short_8: IDUXQ7HE

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/IDUXQ7HES5RQ3Q6JB2BJTS47JD \
  | 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: 40e9787ce497630dc3c90e8299cb9f48ebbfabdf72155f9aa6bce19ed1154fd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b71e6e4a73d39ee1d1b0d10614a70c763a047dbf920c0c17ca6c91462a57fe63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-25T00:15:10Z",
    "title_canon_sha256": "4dc278c241c304c748125fdc572e2c95c6054a7b3f1c7a77a80e0f4ee082b6ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5459",
    "kind": "arxiv",
    "version": 4
  }
}