Pith Number

pith:EX6YG5LO

pith:2011:EX6YG5LOOFORMGWVZ5LRBCCSYV

not attested not anchored not stored refs pending

Compact objects with spin parameter $a_* > 1$

Cosimo Bambi

arxiv:1104.2218 v1 · 2011-04-12 · 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{EX6YG5LOOFORMGWVZ5LRBCCSYV}

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	2026-05-18T04:24:35.729286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25fd83756e715d161ad5cf57108852c54b9da69291070459fe4bc696371c2194

Aliases

arxiv: 1104.2218 · arxiv_version: 1104.2218v1 · doi: 10.48550/arxiv.1104.2218 · pith_short_12: EX6YG5LOOFOR · pith_short_16: EX6YG5LOOFORMGWV · pith_short_8: EX6YG5LO

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/EX6YG5LOOFORMGWVZ5LRBCCSYV \
  | 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: 25fd83756e715d161ad5cf57108852c54b9da69291070459fe4bc696371c2194

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d2b8288e65e01ee0764dc11bfde917f24fd4204b836a5d6f391601ef87ab2e3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-04-12T14:11:25Z",
    "title_canon_sha256": "a331c1af2bd99fdf751b6e30f5373207be767d157f78b06000f30752f3e0bd32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2218",
    "kind": "arxiv",
    "version": 1
  }
}