Pith Number

pith:JOK4T7Z4

pith:2001:JOK4T7Z44IKJ3GVY4Y6YWTLIPJ

not attested not anchored not stored refs pending

Optical spectroscopy of X-MEGA targets I. CPD -59 2635: A New Double-Lined O type Binary in the Carina Nebula

J.F. Albacete Colombo, M.F. Corcoran, N.I. Morrell, V.S. Niemela

arxiv:astro-ph/0105015 v1 · 2001-05-01 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JOK4T7Z44IKJ3GVY4Y6YWTLIPJ}

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	2026-07-04T16:23:19.585330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b95c9ff3ce2149d9ab8e63d8b4d687a700c999aced12bc026d8f8d7881e458d

Aliases

arxiv: astro-ph/0105015 · arxiv_version: astro-ph/0105015v1 · doi: 10.48550/arxiv.astro-ph/0105015 · pith_short_12: JOK4T7Z44IKJ · pith_short_16: JOK4T7Z44IKJ3GVY · pith_short_8: JOK4T7Z4

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/JOK4T7Z44IKJ3GVY4Y6YWTLIPJ \
  | 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: 4b95c9ff3ce2149d9ab8e63d8b4d687a700c999aced12bc026d8f8d7881e458d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6118653e6c43d641e6c3304067b5bd93ae10e84fc76758c0715c42c1af0d68e5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-05-01T23:10:36Z",
    "title_canon_sha256": "7c25d02a689592d54aa42a84d5591677dfa1aa34de63adc0a3888e2925618ac6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0105015",
    "kind": "arxiv",
    "version": 1
  }
}