Pith Number

pith:SA7HZ7CE

pith:2000:SA7HZ7CEFQ26Q75EW3QTNY6CDM

not attested not anchored not stored refs pending

Extreme black hole entropy obtained in an operational approach

Bin Wang, Elcio Abdalla, Ru-Keng Su

arxiv:hep-th/0005043 v1 · 2000-05-04 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SA7HZ7CEFQ26Q75EW3QTNY6CDM}

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	2026-05-18T00:54:21.198612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

903e7cfc442c35e87fa4b6e136e3c21b2c42eee44b907f2aa2b9105ce438a695

Aliases

arxiv: hep-th/0005043 · arxiv_version: hep-th/0005043v1 · doi: 10.48550/arxiv.hep-th/0005043 · pith_short_12: SA7HZ7CEFQ26 · pith_short_16: SA7HZ7CEFQ26Q75E · pith_short_8: SA7HZ7CE

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/SA7HZ7CEFQ26Q75EW3QTNY6CDM \
  | 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: 903e7cfc442c35e87fa4b6e136e3c21b2c42eee44b907f2aa2b9105ce438a695

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0461e6ae16ea9e4075ec012ecd0d8f8b680b14f9491a1b7b2bd59bf6b0306208",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2000-05-04T13:17:14Z",
    "title_canon_sha256": "dfab3f7a81195ab208b74a1f36e227ff9610ae9581270d0b3da5c22f1da2ea80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0005043",
    "kind": "arxiv",
    "version": 1
  }
}