Pith Number

pith:O4KLXA6W

pith:2009:O4KLXA6WWWIF5LUNBTTZ42C7CD

not attested not anchored not stored refs pending

The spectrum of Gamma-ray Burst: a clue

Yi-Zhong Fan

arxiv:0912.1884 v1 · 2009-12-09 · 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{O4KLXA6WWWIF5LUNBTTZ42C7CD}

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	2026-05-18T04:24:54.844529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7714bb83d6b5905eae8d0ce79e685f10e2d1c586b7845231f7130a54dd8de995

Aliases

arxiv: 0912.1884 · arxiv_version: 0912.1884v1 · doi: 10.48550/arxiv.0912.1884 · pith_short_12: O4KLXA6WWWIF · pith_short_16: O4KLXA6WWWIF5LUN · pith_short_8: O4KLXA6W

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/O4KLXA6WWWIF5LUNBTTZ42C7CD \
  | 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: 7714bb83d6b5905eae8d0ce79e685f10e2d1c586b7845231f7130a54dd8de995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf5bc94d871dfb529752ee47bf0642c351aba0a7c9a6e5120e5fb111725c780c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-09T23:26:31Z",
    "title_canon_sha256": "a40902f1319a539cc7bda95bda2c61b875aee6d4623c949308db40616c5c96af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1884",
    "kind": "arxiv",
    "version": 1
  }
}