Pith Number

pith:J74GFGHP

pith:2011:J74GFGHP4SPEXJ7CW7QCCNAT3O

not attested not anchored not stored refs pending

Accelerated Orbital Expansion And Secular Spin Down of the Accreting Millisecond Pulsar SAX J1808.4-3658

(2) Tata Institute for Fundamental Research, (3) JPL, (4) MIT), A. Gopakumar (2), A. Patruno (1), D. Chakrabarty (4) ((1) API, J.M. Hartman (3), M. van der Klis (1), P. Bult (1), R. Wijnands (1), Univ. Amsterdam

arxiv:1111.6967 v2 · 2011-11-29 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J74GFGHP4SPEXJ7CW7QCCNAT3O}

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	2026-05-18T01:59:21.722610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ff86298efe49e4ba7e2b7e0213413db82487c86dd1291b75f785c7a8ee21676

Aliases

arxiv: 1111.6967 · arxiv_version: 1111.6967v2 · doi: 10.48550/arxiv.1111.6967 · pith_short_12: J74GFGHP4SPE · pith_short_16: J74GFGHP4SPEXJ7C · pith_short_8: J74GFGHP

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/J74GFGHP4SPEXJ7CW7QCCNAT3O \
  | 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: 4ff86298efe49e4ba7e2b7e0213413db82487c86dd1291b75f785c7a8ee21676

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de2479dcfafcde5ef09dc8d6bb87cab633ddfe1e389d67e7586c64b936fd0790",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-11-29T20:40:09Z",
    "title_canon_sha256": "db2227c1e620028efe71c04052a10198eb20a7ee9c7dcb0230ad9afde8507d03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6967",
    "kind": "arxiv",
    "version": 2
  }
}