Pith Number

pith:T7OKJF7Q

pith:2013:T7OKJF7QCJ3CUHC5OWLWFTMFHH

not attested not anchored not stored refs pending

X-ray Measurement of the Spin-Down of Calvera: a Radio- and Gamma-ray-Quiet Pulsar

E. V. Gotthelf, J. P. Halpern, S. Bogdanov

arxiv:1310.6789 v1 · 2013-10-24 · 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{T7OKJF7QCJ3CUHC5OWLWFTMFHH}

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	2026-05-18T01:46:49.791447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fdca497f012762a1c5d759762cd8539f8118202f5b25255deb7cc6e32b31445

Aliases

arxiv: 1310.6789 · arxiv_version: 1310.6789v1 · doi: 10.48550/arxiv.1310.6789 · pith_short_12: T7OKJF7QCJ3C · pith_short_16: T7OKJF7QCJ3CUHC5 · pith_short_8: T7OKJF7Q

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/T7OKJF7QCJ3CUHC5OWLWFTMFHH \
  | 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: 9fdca497f012762a1c5d759762cd8539f8118202f5b25255deb7cc6e32b31445

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "137907a252b000f8d40f09ac97ea9d032ad822b1e4fab19ef4cc834fc8da9eaa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-10-24T23:04:05Z",
    "title_canon_sha256": "69e9673e6444c699fa71f669e19d79abe945192c1758ad67e8e69d3d0bd680b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6789",
    "kind": "arxiv",
    "version": 1
  }
}