Pith Number

pith:NG4R3VFG

pith:2002:NG4R3VFGK25VEPFWTOZQYL3MA3

not attested not anchored not stored refs pending

Emission lines in GRBs constrain the total energy reservoir

Cambridge UK), D. Lazzati, E.M. Rossi, G. Ghisellini (Osserv. Astr. di Brera, Italy), Merate, M.J. Rees (IoA

arxiv:astro-ph/0205227 v1 · 2002-05-15 · 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{NG4R3VFGK25VEPFWTOZQYL3MA3}

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	2026-07-04T16:30:00.636104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69b91dd4a656bb523cb69bb30c2f6c06c749ae70add29944e605fdd03e791b22

Aliases

arxiv: astro-ph/0205227 · arxiv_version: astro-ph/0205227v1 · doi: 10.48550/arxiv.astro-ph/0205227 · pith_short_12: NG4R3VFGK25V · pith_short_16: NG4R3VFGK25VEPFW · pith_short_8: NG4R3VFG

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/NG4R3VFGK25VEPFWTOZQYL3MA3 \
  | 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: 69b91dd4a656bb523cb69bb30c2f6c06c749ae70add29944e605fdd03e791b22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0259fd4300e55f135fb4ec44c4689b93f0bcbacced78a74e82d4e7e43800291",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-05-15T12:31:08Z",
    "title_canon_sha256": "3496d909db905d140884a3c8059db9cc6ff6a41aa416d56132eaee7b4a0a7682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0205227",
    "kind": "arxiv",
    "version": 1
  }
}