Pith Number

pith:Q46UNOSU

pith:2008:Q46UNOSUBUL6F3JS63FDABQADA

not attested not anchored not stored refs pending

Upper and lower limits on the Crab pulsar's astrophysical parameters set from gravitational wave observations by LIGO: braking index and energy considerations

Giovanni Santostasi

arxiv:0807.2485 v1 · 2008-07-16 · 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{Q46UNOSUBUL6F3JS63FDABQADA}

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	2026-07-04T15:12:55.918999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

873d46ba540d17e2ed32f6ca3006001804516a8e845a2bca11153dfc77f25b32

Aliases

arxiv: 0807.2485 · arxiv_version: 0807.2485v1 · doi: 10.48550/arxiv.0807.2485 · pith_short_12: Q46UNOSUBUL6 · pith_short_16: Q46UNOSUBUL6F3JS · pith_short_8: Q46UNOSU

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/Q46UNOSUBUL6F3JS63FDABQADA \
  | 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: 873d46ba540d17e2ed32f6ca3006001804516a8e845a2bca11153dfc77f25b32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18689a87c0bf760ee00397404eac92e7a1c92e97292cee8c5cc2b80e396217b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-07-16T00:35:53Z",
    "title_canon_sha256": "1a31f778193b52bc6cff489c83f89530f9d294c28de4dfc508484dfdbcb12a57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.2485",
    "kind": "arxiv",
    "version": 1
  }
}