Pith Number

pith:F5ZARCWI

pith:2001:F5ZARCWIZL42JTA65SJ5QNE4A2

not attested not anchored not stored refs pending

Local and global properties of conformally flat initial data for black hole collisions

Alexei Khokhlov, Igor Novikov, Nina Jansen, Peter Diener

arxiv:gr-qc/0103109 v1 · 2001-03-29 · 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{F5ZARCWIZL42JTA65SJ5QNE4A2}

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	2026-05-18T00:37:00.200129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f72088ac8caf9a4cc1eec93d8349c06adce65bc979fbae15bb234ac8c445b9a

Aliases

arxiv: gr-qc/0103109 · arxiv_version: gr-qc/0103109v1 · doi: 10.48550/arxiv.gr-qc/0103109 · pith_short_12: F5ZARCWIZL42 · pith_short_16: F5ZARCWIZL42JTA6 · pith_short_8: F5ZARCWI

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/F5ZARCWIZL42JTA65SJ5QNE4A2 \
  | 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: 2f72088ac8caf9a4cc1eec93d8349c06adce65bc979fbae15bb234ac8c445b9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fce6094fb1f3b2c49d8e337f1300c342447fc54eef93776b46723b2564184ff4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-03-29T10:28:34Z",
    "title_canon_sha256": "550d78901ecd0b72b71224482e584e8c1b4de9e7cba831dc6d5143ef6de1bdef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0103109",
    "kind": "arxiv",
    "version": 1
  }
}