Pith Number

pith:QQDKBF4I

pith:2007:QQDKBF4IIQE5ZTATQSWMTCFL2V

not attested not anchored not stored refs pending

How common are long Gamma-Ray Bursts in the Local Universe?

(2) University of Leicester, (3) University of Warwick), Andrew J. Levan (3) ((1) University of Hertfordshire, Nial R. Tanvir (2), Robert Chapman (1), Robert S. Priddey (1)

arxiv:0708.2106 v1 · 2007-08-16 · 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{QQDKBF4IIQE5ZTATQSWMTCFL2V}

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.

Cited by

1 paper in Pith

Gamma-ray bursts reveal the history and faint contributors of cosmic reionization

Receipt and verification

First computed	2026-07-04T17:05:12.301930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8406a097884409dccc1384acc988abd57afddd55efb337402b0a5100cc9505e0

Aliases

arxiv: 0708.2106 · arxiv_version: 0708.2106v1 · doi: 10.48550/arxiv.0708.2106 · pith_short_12: QQDKBF4IIQE5 · pith_short_16: QQDKBF4IIQE5ZTAT · pith_short_8: QQDKBF4I

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/QQDKBF4IIQE5ZTATQSWMTCFL2V \
  | 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: 8406a097884409dccc1384acc988abd57afddd55efb337402b0a5100cc9505e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91da6e7750e675f6a5422db9a595d9b0f81d3d6b5b3477d7b0fca36b0490b47f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-16T14:45:39Z",
    "title_canon_sha256": "aada660b4e812df02dde34a80d23973ecfdcd25240dc5f4e5a1f3fb84389740b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.2106",
    "kind": "arxiv",
    "version": 1
  }
}