Pith Number

pith:YF4NEQGD

pith:2012:YF4NEQGD6O7QIAFQXNLSFDNWBD

not attested not anchored not stored refs pending

Optimizing optical follow-up of gravitational-wave candidates

Antony Speranza, Larry Price, Leo Singer

arxiv:1204.4510 v1 · 2012-04-20 · astro-ph.IM · 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{YF4NEQGD6O7QIAFQXNLSFDNWBD}

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	2026-05-18T03:57:27.154055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c178d240c3f3bf0400b0bb57228db608f299f533c6dfd25a9ae1ceaf3bf69c22

Aliases

arxiv: 1204.4510 · arxiv_version: 1204.4510v1 · doi: 10.48550/arxiv.1204.4510 · pith_short_12: YF4NEQGD6O7Q · pith_short_16: YF4NEQGD6O7QIAFQ · pith_short_8: YF4NEQGD

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/YF4NEQGD6O7QIAFQXNLSFDNWBD \
  | 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: c178d240c3f3bf0400b0bb57228db608f299f533c6dfd25a9ae1ceaf3bf69c22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03d9943defebb2266f868d40f6d887bef543ae69ff7aa6bd44c88daa94c43bd2",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-04-20T00:56:59Z",
    "title_canon_sha256": "4be007f6db8ce20335bfd864bcbf6edd1929cabe5880e7859816b9ef7a951936"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4510",
    "kind": "arxiv",
    "version": 1
  }
}