Pith Number

pith:ZQBN2YHY

pith:2007:ZQBN2YHYUIBIYHC6CU6UAVCFIY

not attested not anchored not stored refs pending

The First Supernova Explosions: Energetics, Feedback, and Chemical Enrichment

Jarrett L. Johnson, Ralf S. Klessen, Thomas H. Greif, Volker Bromm

arxiv:0705.3048 v5 · 2007-05-21 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQBN2YHYUIBIYHC6CU6UAVCFIY}

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	2026-05-18T04:29:33.935182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc02dd60f8a2028c1c5e153d405445460712f260058c324cf47627f239134761

Aliases

arxiv: 0705.3048 · arxiv_version: 0705.3048v5 · doi: 10.48550/arxiv.0705.3048 · pith_short_12: ZQBN2YHYUIBI · pith_short_16: ZQBN2YHYUIBIYHC6 · pith_short_8: ZQBN2YHY

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/ZQBN2YHYUIBIYHC6CU6UAVCFIY \
  | 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: cc02dd60f8a2028c1c5e153d405445460712f260058c324cf47627f239134761

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36feabb28368a3b2ed408695ee642aedbf5424e088de342e298caf4c5831cab8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-21T20:52:04Z",
    "title_canon_sha256": "599b1a5065513cf7d13ff71d960a39dd7c0314a281e5d1f4b81899d9e6341805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.3048",
    "kind": "arxiv",
    "version": 5
  }
}