Pith Number

pith:ULVCUKUC

pith:1994:ULVCUKUCVBPO6BMYQ6MNUFRIU2

not attested not anchored not stored refs pending

The Orion OB1 Association I. Stellar content

A.G.A. Brown, E.J. de Geus, P.T. de Zeeuw

arxiv:astro-ph/9403051 v1 · 1994-03-23 · 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{ULVCUKUCVBPO6BMYQ6MNUFRIU2}

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.

Cited by

1 paper in Pith

Type Ib supernovae are bluer than Type Ic supernovae

Receipt and verification

First computed	2026-07-04T15:49:35.632020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ea2a2a82a85eef05988798da1628a693e2e0096232b9b639c07e3407269198

Aliases

arxiv: astro-ph/9403051 · arxiv_version: astro-ph/9403051v1 · doi: 10.48550/arxiv.astro-ph/9403051 · pith_short_12: ULVCUKUCVBPO · pith_short_16: ULVCUKUCVBPO6BMY · pith_short_8: ULVCUKUC

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/ULVCUKUCVBPO6BMYQ6MNUFRIU2 \
  | 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: a2ea2a2a82a85eef05988798da1628a693e2e0096232b9b639c07e3407269198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c1edfe4a1fa96d451e4bbf372ff90820cc02651a5727da75e1a7b29ee7facae",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-03-23T15:08:38Z",
    "title_canon_sha256": "fed2712d5e0d3b05d9e437b4c6299906c0364007b9782a8497e5400e631bcfd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9403051",
    "kind": "arxiv",
    "version": 1
  }
}