Pith Number

pith:7C22B5GG

pith:2018:7C22B5GG7KOJVJR535RLWSZTMZ

not attested not anchored not stored refs pending

An algorithm for determining the rotation count of pulsars

Alessandro Ridolfi, Paulo C. C. Freire

arxiv:1802.07211 v1 · 2018-02-20 · astro-ph.IM · 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{7C22B5GG7KOJVJR535RLWSZTMZ}

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	2026-05-18T00:21:05.844168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8b5a0f4c6fa9c9aa63ddf62bb4b3366605d89d26dfd34c3550a3940bfc0be42

Aliases

arxiv: 1802.07211 · arxiv_version: 1802.07211v1 · doi: 10.48550/arxiv.1802.07211 · pith_short_12: 7C22B5GG7KOJ · pith_short_16: 7C22B5GG7KOJVJR5 · pith_short_8: 7C22B5GG

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/7C22B5GG7KOJVJR535RLWSZTMZ \
  | 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: f8b5a0f4c6fa9c9aa63ddf62bb4b3366605d89d26dfd34c3550a3940bfc0be42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab48fc06c2b66030ddda683aa054d645d27087f3ed0959056b23ca4b5446d67b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-02-20T17:24:35Z",
    "title_canon_sha256": "f8ba9d64ecf24ec22cb67defe716356ac8ae3deb0c35e0c5488729455b792eaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07211",
    "kind": "arxiv",
    "version": 1
  }
}