Pith Number

pith:OOP6DMTB

pith:2018:OOP6DMTB4ITU6VRWYXPBR4AQOX

not attested not anchored not stored refs pending

Gravitational wave echoes from strange stars

Francesco Tonelli, Massimo Mannarelli

arxiv:1805.02278 v2 · 2018-05-06 · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OOP6DMTB4ITU6VRWYXPBR4AQOX}

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	2026-05-18T00:12:17.070325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

739fe1b261e2274f5636c5de18f01075fb5586a6b8ea87ec69edd06a91806f23

Aliases

arxiv: 1805.02278 · arxiv_version: 1805.02278v2 · doi: 10.48550/arxiv.1805.02278 · pith_short_12: OOP6DMTB4ITU · pith_short_16: OOP6DMTB4ITU6VRW · pith_short_8: OOP6DMTB

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/OOP6DMTB4ITU6VRWYXPBR4AQOX \
  | 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: 739fe1b261e2274f5636c5de18f01075fb5586a6b8ea87ec69edd06a91806f23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51db1d25d18e07b3ac60bb3e508063535d2eecbc0f0db8296344e9cd689cdc12",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-06T21:01:03Z",
    "title_canon_sha256": "66dcc789a70a609b88fcd75338dafc7bf9bb92ea5463851c1b69ddf61e5cc155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02278",
    "kind": "arxiv",
    "version": 2
  }
}