Pith Number

pith:F55GR4D3

pith:2007:F55GR4D3TQ5R2DNRR2MQYQXWH3

not attested not anchored not stored refs pending

Final spin of a coalescing black-hole binary: an Effective-One-Body approach

Alessandro Nagar, Thibault Damour

arxiv:0704.3550 v2 · 2007-04-26 · 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{F55GR4D3TQ5R2DNRR2MQYQXWH3}

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.

Cited by

2 papers in Pith

Cusp Formation in Merging Black Hole Horizons

Receipt and verification

First computed	2026-07-04T15:21:46.300457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f7a68f07b9c3b1d0db18e990c42f63ed60c8aaab29b649016358ee352f32a06

Aliases

arxiv: 0704.3550 · arxiv_version: 0704.3550v2 · doi: 10.48550/arxiv.0704.3550 · pith_short_12: F55GR4D3TQ5R · pith_short_16: F55GR4D3TQ5R2DNR · pith_short_8: F55GR4D3

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/F55GR4D3TQ5R2DNRR2MQYQXWH3 \
  | 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: 2f7a68f07b9c3b1d0db18e990c42f63ed60c8aaab29b649016358ee352f32a06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5852bb986e29e94e59ad389ae340b2ba8856941dde32d8c5cc16756877ae7c4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-04-26T14:22:01Z",
    "title_canon_sha256": "2579ed8a6af222be5921787397347923ebc4c8619c51c867c5fbe0b264829dcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3550",
    "kind": "arxiv",
    "version": 2
  }
}