Pith Number

pith:N72D257O

pith:2001:N72D257OQUO5H647RAZGHDFBNE

not attested not anchored not stored refs pending

IRAS F02044+0957: radio source in interacting system of galaxies

J.R. Vald\'es (2), M\'exico), O.V.Verkhodanov (1), Puebla, R. M\'ujica (2), Russia; (2) Instituto Nacional de Astrof\'isica \'Optica y Electr\'onica, S.A.Trushkin (1) ((1) Special astrophysical observatory, V.H. Chavushyan (2)

arxiv:astro-ph/0112140 v1 · 2001-12-06 · 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{N72D257OQUO5H647RAZGHDFBNE}

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	2026-05-18T01:09:10.824764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ff43d77ee851dd3fb9f8832638ca1690978cdc26e47b3c1e8e0d3a561ad300c

Aliases

arxiv: astro-ph/0112140 · arxiv_version: astro-ph/0112140v1 · doi: 10.48550/arxiv.astro-ph/0112140 · pith_short_12: N72D257OQUO5 · pith_short_16: N72D257OQUO5H647 · pith_short_8: N72D257O

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/N72D257OQUO5H647RAZGHDFBNE \
  | 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: 6ff43d77ee851dd3fb9f8832638ca1690978cdc26e47b3c1e8e0d3a561ad300c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a63140cf6b8569bf47d769ee59486e142816ccc1ffdd983649d7f3d0c9a0f03b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-06T13:23:03Z",
    "title_canon_sha256": "6730bddb9f6c615b7331df93d9f8f093172b597cb670ca2c9406154125a0cff2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112140",
    "kind": "arxiv",
    "version": 1
  }
}