Pith Number

pith:PT25JL67

pith:2015:PT25JL67OEUOJ5MBODQBUWFDHL

not attested not anchored not stored refs pending

Shadows of CPR black holes and tests of the Kerr metric

Cosimo Bambi, M. Ghasemi-Nodehi, Zilong Li

arxiv:1506.02627 v2 · 2015-06-08 · 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{PT25JL67OEUOJ5MBODQBUWFDHL}

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	2026-05-18T01:37:13.048959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cf5d4afdf7128e4f58170e01a58a33afa85c30cc9d5d0a2e083bbd7085f131a

Aliases

arxiv: 1506.02627 · arxiv_version: 1506.02627v2 · doi: 10.48550/arxiv.1506.02627 · pith_short_12: PT25JL67OEUO · pith_short_16: PT25JL67OEUOJ5MB · pith_short_8: PT25JL67

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/PT25JL67OEUOJ5MBODQBUWFDHL \
  | 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: 7cf5d4afdf7128e4f58170e01a58a33afa85c30cc9d5d0a2e083bbd7085f131a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad5303cf8323681cccdc3e2da582a93f63d576ea20d09a4ece6c72c96a79c986",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-06-08T19:29:32Z",
    "title_canon_sha256": "6eacfe560a320b8a4b5dd23b1d05f22e59ddedca007d6ffca20c71bc8cb5c0c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02627",
    "kind": "arxiv",
    "version": 2
  }
}