Pith Number

pith:M7DBMX5W

pith:2000:M7DBMX5WXM7MNF2V7QN3KBTTYP

not attested not anchored not stored refs pending

The Life and Times of Extremal Black Holes

Fred C. Adams (Physics Dept., University of Michigan)

arxiv:gr-qc/0006062 v1 · 2000-06-16 · 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{M7DBMX5WXM7MNF2V7QN3KBTTYP}

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	2026-05-18T01:39:24.767951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67c6165fb6bb3ec69755fc1bb50673c3eade19086774fe3aafb0d1d3edaeea6c

Aliases

arxiv: gr-qc/0006062 · arxiv_version: gr-qc/0006062v1 · doi: 10.48550/arxiv.gr-qc/0006062 · pith_short_12: M7DBMX5WXM7M · pith_short_16: M7DBMX5WXM7MNF2V · pith_short_8: M7DBMX5W

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/M7DBMX5WXM7MNF2V7QN3KBTTYP \
  | 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: 67c6165fb6bb3ec69755fc1bb50673c3eade19086774fe3aafb0d1d3edaeea6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65a3c9bbedffa8f94292fdee89874894cf3057d7b5502e42eec24b08f0713164",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2000-06-16T15:53:41Z",
    "title_canon_sha256": "9149eebd1efeeeea36b9b61aec4153aa2523af1fd916ed4fc33e4a41e55867c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0006062",
    "kind": "arxiv",
    "version": 1
  }
}