Pith Number

pith:UERFMJRU

pith:2002:UERFMJRUOJYSYQBU25DNMUAMMV

not attested not anchored not stored refs pending

Black Hole Mass Formula Is a Vanishing Noether Charge

Chao-Guang Huang, Han-Ying Guo, Ke Wu, Xiaoning Wu

arxiv:gr-qc/0201100 v1 · 2002-01-31 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UERFMJRUOJYSYQBU25DNMUAMMV}

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	2026-05-18T00:25:46.678886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a12256263472712c4034d746d6500c655eec57d5301338794d7c119456ad8d84

Aliases

arxiv: gr-qc/0201100 · arxiv_version: gr-qc/0201100v1 · doi: 10.48550/arxiv.gr-qc/0201100 · pith_short_12: UERFMJRUOJYS · pith_short_16: UERFMJRUOJYSYQBU · pith_short_8: UERFMJRU

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/UERFMJRUOJYSYQBU25DNMUAMMV \
  | 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: a12256263472712c4034d746d6500c655eec57d5301338794d7c119456ad8d84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05c53244fbfbea694c32c8cb3f86bb17929475d68fbeea86e6b61a5a1b93aa52",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-01-31T07:57:59Z",
    "title_canon_sha256": "0ec796d9a693210caec68074b8bfec2a8f6e0e83ee50568e2281aadd8508d1cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0201100",
    "kind": "arxiv",
    "version": 1
  }
}