Pith Number

pith:COULEFI2

pith:2011:COULEFI2VARAXEMJVMD5UBGZMK

not attested not anchored not stored refs pending

The X-ray Lightcurve of WR 140

A. M. T. Pollock, C. Russell, K. Hamaguchi, M. F. Corcoran

arxiv:1101.1422 v1 · 2011-01-07 · 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{COULEFI2VARAXEMJVMD5UBGZMK}

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	2026-05-18T04:31:52.853234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13a8b2151aa8220b9189ab07da04d9628da7dece025dd07f125b91ffa4fd0e01

Aliases

arxiv: 1101.1422 · arxiv_version: 1101.1422v1 · doi: 10.48550/arxiv.1101.1422 · pith_short_12: COULEFI2VARA · pith_short_16: COULEFI2VARAXEMJ · pith_short_8: COULEFI2

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/COULEFI2VARAXEMJVMD5UBGZMK \
  | 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: 13a8b2151aa8220b9189ab07da04d9628da7dece025dd07f125b91ffa4fd0e01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4817a57a01844951857dc0d0328deeabf7c24f24c4d2f9390885992a01752733",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-07T12:33:25Z",
    "title_canon_sha256": "c9a418785322e74c07c8a86ffd2982edfcf98bed843ec36205991681a0496db1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1422",
    "kind": "arxiv",
    "version": 1
  }
}