Pith Number

pith:ZAQJRZKN

pith:2013:ZAQJRZKNDQNFYKSFH7HSGVTG22

not attested not anchored not stored refs pending

Inner Accretion Disk Edges in a Kerr-Like Spacetime

Cita, Perimeter), Tim Johannsen (Waterloo

arxiv:1304.8106 v4 · 2013-04-30 · gr-qc · 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{ZAQJRZKNDQNFYKSFH7HSGVTG22}

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	2026-05-18T01:50:13.946576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c82098e54d1c1a5c2a453fcf235666d697df5a17680381b8477efcb7d28065b0

Aliases

arxiv: 1304.8106 · arxiv_version: 1304.8106v4 · doi: 10.48550/arxiv.1304.8106 · pith_short_12: ZAQJRZKNDQNF · pith_short_16: ZAQJRZKNDQNFYKSF · pith_short_8: ZAQJRZKN

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/ZAQJRZKNDQNFYKSFH7HSGVTG22 \
  | 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: c82098e54d1c1a5c2a453fcf235666d697df5a17680381b8477efcb7d28065b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96356bb5fb311cff075b465cfe7ad92aafe35a67c82d2cb03c954c3737c3c0d1",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-30T18:36:57Z",
    "title_canon_sha256": "8d639aa9596018499ff6edcee36d1cc203ed06aa2faca90c36a80e2ef3f8ca62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.8106",
    "kind": "arxiv",
    "version": 4
  }
}