Pith Number

pith:BQN5IV3U

pith:2013:BQN5IV3UNEESFI567N3FWZR3JT

not attested not anchored not stored refs pending

Black hole spin-down by truncated disc emission

Pavel Abolmasov

arxiv:1303.5470 v1 · 2013-03-21 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQN5IV3UNEESFI567N3FWZR3JT}

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	2026-05-18T01:50:59.748942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1bd45774690922a3befb765b663b4cd3f517677d468d6c91532520fe9f32b7

Aliases

arxiv: 1303.5470 · arxiv_version: 1303.5470v1 · doi: 10.48550/arxiv.1303.5470 · pith_short_12: BQN5IV3UNEES · pith_short_16: BQN5IV3UNEESFI56 · pith_short_8: BQN5IV3U

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/BQN5IV3UNEESFI567N3FWZR3JT \
  | 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: 0c1bd45774690922a3befb765b663b4cd3f517677d468d6c91532520fe9f32b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8adb7c82febdae799615390891c719dc763fb736b55b25ee2cfe6231b1a09eff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-03-21T21:27:56Z",
    "title_canon_sha256": "269f848cdccad0a4b66ef4f762576a8406aa80f39972aab97ada2427637fb479"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5470",
    "kind": "arxiv",
    "version": 1
  }
}