Pith Number

pith:ZU32R3B3

pith:2013:ZU32R3B3WGBIFA7CVIQOGPLUCQ

not attested not anchored not stored refs pending

Universal scaling law in long gamma-ray bursts

Ryo Tsutsui, Toshikazu Shigeyama

arxiv:1304.0587 v1 · 2013-04-02 · astro-ph.HE · 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{ZU32R3B3WGBIFA7CVIQOGPLUCQ}

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	2026-05-18T01:50:50.099416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd37a8ec3bb1828283e2aa20e33d741410e62ccbaaa86a12798b17d212ccecef

Aliases

arxiv: 1304.0587 · arxiv_version: 1304.0587v1 · doi: 10.48550/arxiv.1304.0587 · pith_short_12: ZU32R3B3WGBI · pith_short_16: ZU32R3B3WGBIFA7C · pith_short_8: ZU32R3B3

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/ZU32R3B3WGBIFA7CVIQOGPLUCQ \
  | 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: cd37a8ec3bb1828283e2aa20e33d741410e62ccbaaa86a12798b17d212ccecef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5df2f446a41fe447d6612095f224305b4a1a23c219baa76d949d8379384784c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-02T11:12:07Z",
    "title_canon_sha256": "80bc001f0a5110407004a134820415a82b0de1f35fe49f9d506b0f12e5fe5bcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0587",
    "kind": "arxiv",
    "version": 1
  }
}