Pith Number

pith:ZSYZMX2I

pith:2013:ZSYZMX2IR5KCLQWUIKNPKWMUCD

not attested not anchored not stored refs pending

Searching for gravitational waves from known pulsars at once and twice the spin frequency

A. Kr\'olak, M. Bejger

arxiv:1312.5478 v2 · 2013-12-19 · gr-qc · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZSYZMX2IR5KCLQWUIKNPKWMUCD}

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	2026-05-18T02:52:41.665142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccb1965f488f5425c2d4429af5599410f9841ab7bc6d8b5345ccc27c1f26054c

Aliases

arxiv: 1312.5478 · arxiv_version: 1312.5478v2 · doi: 10.48550/arxiv.1312.5478 · pith_short_12: ZSYZMX2IR5KC · pith_short_16: ZSYZMX2IR5KCLQWU · pith_short_8: ZSYZMX2I

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/ZSYZMX2IR5KCLQWUIKNPKWMUCD \
  | 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: ccb1965f488f5425c2d4429af5599410f9841ab7bc6d8b5345ccc27c1f26054c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50350a7c3452d5626bc4e0d137dc4566bea219f2047c4d2dd339cecba207d74c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-12-19T11:02:34Z",
    "title_canon_sha256": "a5ae5af5a9b89c68860430f63ba9acd8a38dc830d054b6ea285077ff3ce449a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5478",
    "kind": "arxiv",
    "version": 2
  }
}