Pith Number

pith:BGXDH2IF

pith:2004:BGXDH2IFX4HCSXH6USM5CRMNFP

not attested not anchored not stored refs pending

The Truncated Disk of CoKu Tau/4

(2) CfA, (3) Rochester, (4) Cornell, (5) JPL, (6) UCLA, (7) NOAO), Ben Sargent (3), Christine H.Chen (5), Dan M. Watson (3), Elise Furlan (4), F. Kemper (6), G.C. Sloan (4), Joan Najita (7) ((1) CRyA-UNAM, Joel D. Green (3), Keven Uchida (4), Lee Hartmann (2), Nuria Calvet (2), Paola D'Alessio (1), Ramiro Franco-Hernandez (1), William J. Forrest (3)

arxiv:astro-ph/0411522 v1 · 2004-11-18 · 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{BGXDH2IFX4HCSXH6USM5CRMNFP}

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	2026-05-18T04:16:39.940278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09ae33e905bf0e295cfea499d1458d2be6bae1a4eaa7155a1baac37ea94102ac

Aliases

arxiv: astro-ph/0411522 · arxiv_version: astro-ph/0411522v1 · doi: 10.48550/arxiv.astro-ph/0411522 · pith_short_12: BGXDH2IFX4HC · pith_short_16: BGXDH2IFX4HCSXH6 · pith_short_8: BGXDH2IF

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/BGXDH2IFX4HCSXH6USM5CRMNFP \
  | 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: 09ae33e905bf0e295cfea499d1458d2be6bae1a4eaa7155a1baac37ea94102ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b57f102bb193863a2935ddaefe1d0668bfb29070f73f32678ad2b2195b71a61",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-18T01:17:06Z",
    "title_canon_sha256": "3f371213ea705fd9efe74c4064659f7302f6221fe53006cb6165f14ee369e7cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411522",
    "kind": "arxiv",
    "version": 1
  }
}