Pith Number

pith:SF2ULN4C

pith:2017:SF2ULN4CS5D3FRWZLLONWWRCYA

not attested not anchored not stored refs pending

Observing binary black hole ringdowns by advanced gravitational wave detectors

Andrea Maselli, Kostas Kokkotas, Pablo Laguna

arxiv:1702.01110 v2 · 2017-02-03 · 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{SF2ULN4CS5D3FRWZLLONWWRCYA}

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	2026-05-18T00:43:54.920082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

917545b7829747b2c6d95adcdb5a22c0206fb0e528c8de7fbcac6083f2e9efdd

Aliases

arxiv: 1702.01110 · arxiv_version: 1702.01110v2 · doi: 10.48550/arxiv.1702.01110 · pith_short_12: SF2ULN4CS5D3 · pith_short_16: SF2ULN4CS5D3FRWZ · pith_short_8: SF2ULN4C

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/SF2ULN4CS5D3FRWZLLONWWRCYA \
  | 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: 917545b7829747b2c6d95adcdb5a22c0206fb0e528c8de7fbcac6083f2e9efdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4347b3f8732b7c6aa1e79238b7bcbfed75bb7983606c148b45b4aff6722885bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-02-03T18:49:26Z",
    "title_canon_sha256": "40c1218be78377323c9c9e66dee58b4728e40a477e0485eee92eaa2c567517ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.01110",
    "kind": "arxiv",
    "version": 2
  }
}