Pith Number

pith:2RDJI22G

pith:2017:2RDJI22GP77AOKCBSAU3XA6RR6

not attested not anchored not stored refs pending

The formation and coalescence sites of the first gravitational wave events

Luca Graziani, Mario Spera, Matteo Alparone, Matteo de Bennassuti, Michela Mapelli, Raffaella Schneider, Stefania Marassi

arxiv:1705.06781 v2 · 2017-05-18 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2RDJI22GP77AOKCBSAU3XA6RR6}

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	2026-05-18T00:36:31.541678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d446946b467ffe0728419029bb83d18f905c31bdcab9c435ef06e3538c77cb1f

Aliases

arxiv: 1705.06781 · arxiv_version: 1705.06781v2 · doi: 10.48550/arxiv.1705.06781 · pith_short_12: 2RDJI22GP77A · pith_short_16: 2RDJI22GP77AOKCB · pith_short_8: 2RDJI22G

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/2RDJI22GP77AOKCBSAU3XA6RR6 \
  | 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: d446946b467ffe0728419029bb83d18f905c31bdcab9c435ef06e3538c77cb1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73c3e6424691ff146b39ec73c9fb35b3d5ffe76ca675a3a3ba65167035ef9e32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-18T20:00:04Z",
    "title_canon_sha256": "56ad3eb2282a4232ce8d6ebc244fae89ff622c252396f760cc217196b9fcaddc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06781",
    "kind": "arxiv",
    "version": 2
  }
}