Pith Number

pith:LQ2ZNDOJ

pith:2015:LQ2ZNDOJNRMDRPBTYWCVST6VYB

not attested not anchored not stored refs pending

Constraints on Individual Supermassive Black Hole Binaries from Pulsar Timing Array Limits on Continuous Gravitational Waves

Chung-Pei Ma, Katelin Schutz

arxiv:1510.08472 v2 · 2015-10-28 · astro-ph.GA · astro-ph.CO · astro-ph.HE · 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{LQ2ZNDOJNRMDRPBTYWCVST6VYB}

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	2026-05-18T01:17:32.805259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c35968dc96c5838bc33c585594fd5c062514878d5a71d24fb80ab8dae8c8f4d

Aliases

arxiv: 1510.08472 · arxiv_version: 1510.08472v2 · doi: 10.48550/arxiv.1510.08472 · pith_short_12: LQ2ZNDOJNRMD · pith_short_16: LQ2ZNDOJNRMDRPBT · pith_short_8: LQ2ZNDOJ

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/LQ2ZNDOJNRMDRPBTYWCVST6VYB \
  | 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: 5c35968dc96c5838bc33c585594fd5c062514878d5a71d24fb80ab8dae8c8f4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0adadd13f4f3ef6f89237f643d978895bc088cc81d5b6e987d6191096b94daad",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-28T20:19:53Z",
    "title_canon_sha256": "2c21fb28641c358bd6ea01ef7dd3a2abc4d3b2efeb31e08afca694be5b9ac1d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08472",
    "kind": "arxiv",
    "version": 2
  }
}