Pith Number

pith:W4KNXKDH

pith:2010:W4KNXKDHWPRXNBOTQ4M2WEIBPO

not attested not anchored not stored refs pending

Atmospheric parameters and rotational velocities for a sample of Galactic B-type supergiants

Astronomy, I. Hunter (1), M. Fraser (1), P.L. Dufton (1), Queen's University of Belfast), R.S.I. Ryans (1) ((1) Department of Physics

arxiv:1001.3337 v1 · 2010-01-19 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4KNXKDHWPRXNBOTQ4M2WEIBPO}

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	2026-05-18T02:09:42.343140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b714dba867b3e37685d38719ab11017bbdbf6d65e34fa5a75dfffde58f0e06b8

Aliases

arxiv: 1001.3337 · arxiv_version: 1001.3337v1 · doi: 10.48550/arxiv.1001.3337 · pith_short_12: W4KNXKDHWPRX · pith_short_16: W4KNXKDHWPRXNBOT · pith_short_8: W4KNXKDH

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/W4KNXKDHWPRXNBOTQ4M2WEIBPO \
  | 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: b714dba867b3e37685d38719ab11017bbdbf6d65e34fa5a75dfffde58f0e06b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28429217b386977c908cb6b634e5024cbcbba70365a0ea98c14f417fe8a8af54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-01-19T15:55:50Z",
    "title_canon_sha256": "45a863272f3d850fe86e00c3468f12aa496b095115ac2a1cbfbd55af104f318e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.3337",
    "kind": "arxiv",
    "version": 1
  }
}