Pith Number

pith:7GTNE6RP

pith:2012:7GTNE6RPAVIG43AGUTVT7YQR4Y

not attested not anchored not stored refs pending

A Metric for Testing the Nature of Black Holes

Arizona), Perimeter, Tim Johannsen (Waterloo

arxiv:1210.0483 v1 · 2012-10-01 · 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{7GTNE6RPAVIG43AGUTVT7YQR4Y}

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	2026-05-18T01:54:11.957517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9a6d27a2f05506e6c06a4eb3fe211e61f2d4dd6cc5de427df64d8f6de208e5f

Aliases

arxiv: 1210.0483 · arxiv_version: 1210.0483v1 · doi: 10.48550/arxiv.1210.0483 · pith_short_12: 7GTNE6RPAVIG · pith_short_16: 7GTNE6RPAVIG43AG · pith_short_8: 7GTNE6RP

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/7GTNE6RPAVIG43AGUTVT7YQR4Y \
  | 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: f9a6d27a2f05506e6c06a4eb3fe211e61f2d4dd6cc5de427df64d8f6de208e5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a99a0d20820054375852bc02f6e2ee4efd7e28efba06199e208c3c6495379dcd",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-10-01T17:56:12Z",
    "title_canon_sha256": "508e65eb6699cd7563ab36c7387da1c7a6ee102e97cf9eee653a5cc440adf4d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0483",
    "kind": "arxiv",
    "version": 1
  }
}