Pith Number

pith:WMHGYRJA

pith:2008:WMHGYRJA4WQXYKDXVZUQJIC2HL

not attested not anchored not stored refs pending

LOOC UP: Locating and observing optical counterparts to gravitational wave bursts

David C. Murphy, Jennifer Piscionere, Jonah Kanner, Molly Reed, Peter Shawhan, Szabolcs Marka, Tracy L. Huard

arxiv:0803.0312 v4 · 2008-03-03 · astro-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{WMHGYRJA4WQXYKDXVZUQJIC2HL}

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	2026-07-04T15:44:43.469904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b30e6c4520e5a17c2877ae6904a05a3afa2a7321091d375982d3f5e175449409

Aliases

arxiv: 0803.0312 · arxiv_version: 0803.0312v4 · doi: 10.48550/arxiv.0803.0312 · pith_short_12: WMHGYRJA4WQX · pith_short_16: WMHGYRJA4WQXYKDX · pith_short_8: WMHGYRJA

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/WMHGYRJA4WQXYKDXVZUQJIC2HL \
  | 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: b30e6c4520e5a17c2877ae6904a05a3afa2a7321091d375982d3f5e175449409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "816964bb8b46a9bb5355b3b743b0ccac498bad9f4474155daa938adccc80e4c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-03-03T20:49:22Z",
    "title_canon_sha256": "a9c1e57ab0df7c9c751285019fc0ba62a4009fb4bd84c4db2d8ffb9d17be26bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.0312",
    "kind": "arxiv",
    "version": 4
  }
}