Pith Number

pith:5KUHVUED

pith:1997:5KUHVUEDDTIH4XAH2OB7CLDRCW

not attested not anchored not stored refs pending

On the Entropy of Matrix Black Holes

Emil Martinec, Miao Li

arxiv:hep-th/9704134 v2 · 1997-04-17 · 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{5KUHVUEDDTIH4XAH2OB7CLDRCW}

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	2026-07-04T16:05:27.840825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaa87ad0831cd07e5c07d383f12c71159f67e617bd3a6ca2bdd4825222e08d10

Aliases

arxiv: hep-th/9704134 · arxiv_version: hep-th/9704134v2 · doi: 10.48550/arxiv.hep-th/9704134 · pith_short_12: 5KUHVUEDDTIH · pith_short_16: 5KUHVUEDDTIH4XAH · pith_short_8: 5KUHVUED

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/5KUHVUEDDTIH4XAH2OB7CLDRCW \
  | 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: eaa87ad0831cd07e5c07d383f12c71159f67e617bd3a6ca2bdd4825222e08d10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0511b246eeb90e5d802e0acb9e5debf7a3c8d7d74434b069cd18f6eb86596c14",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1997-04-17T22:06:52Z",
    "title_canon_sha256": "518fccc1c01873741444ff4f8bd1d6b87cf6bb1dd057d6442b7a5dc3fda68b62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9704134",
    "kind": "arxiv",
    "version": 2
  }
}