Pith Number

pith:FTMZ7NVS

pith:2007:FTMZ7NVSZSNJSYMD3PQ47IN6YX

not attested not anchored not stored refs pending

The Progenitors of Short Gamma-Ray Bursts

Enrico Ramirez-Ruiz, William H. Lee

arxiv:astro-ph/0701874 v3 · 2007-01-30 · 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{FTMZ7NVSZSNJSYMD3PQ47IN6YX}

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	2026-05-18T04:18:02.634181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cd99fb6b2cc9a996183dbe1cfa1bec5cb4b8f87a0b86ae4232b33af23858b60

Aliases

arxiv: astro-ph/0701874 · arxiv_version: astro-ph/0701874v3 · doi: 10.48550/arxiv.astro-ph/0701874 · pith_short_12: FTMZ7NVSZSNJ · pith_short_16: FTMZ7NVSZSNJSYMD · pith_short_8: FTMZ7NVS

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/FTMZ7NVSZSNJSYMD3PQ47IN6YX \
  | 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: 2cd99fb6b2cc9a996183dbe1cfa1bec5cb4b8f87a0b86ae4232b33af23858b60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a990835ba4e66c2c07484781536b0da77f62fcdee12b496416640a6bb9950f44",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-30T20:11:34Z",
    "title_canon_sha256": "6f59efd3947651e4fa6320017e6577e79d99fc3179a52cb95f69fc931740b2aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701874",
    "kind": "arxiv",
    "version": 3
  }
}