Pith Number

pith:TY7N2TKD

pith:2002:TY7N2TKDAATPO7JUZXFPVCUW7I

not attested not anchored not stored refs pending

The Nature of the faint far-infrared extragalactic source population: Optical/NIR and radio follow-up observations of ISOPHOT deep-field sources using Keck, Subaru, and VLA telescopes

D. B. Sanders, H. Okuda (Gumma Observatory), K. Kawara, K. Wakamatsu (Gifu Univ), L. L. Cowie (IfA, M. S. Yun (Univ of Massachusetts), R. D. Joseph, S. Veilleux (Univ of Maryland), T. Matsumoto (ISAS), T. Murayama, Univ of Hawaii), Y. Sato (Univ of Tokyo), Y. Sofue, Y. Taniguchi (Tohoku Univ), Yuko Kakazu

arxiv:astro-ph/0201326 v1 · 2002-01-21 · 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{TY7N2TKDAATPO7JUZXFPVCUW7I}

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	2026-07-04T14:11:45.871288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e3edd4d430026f77d34cdcafa8a96fa3d204bb80b9e67185542ba2eb4c02688

Aliases

arxiv: astro-ph/0201326 · arxiv_version: astro-ph/0201326v1 · doi: 10.48550/arxiv.astro-ph/0201326 · pith_short_12: TY7N2TKDAATP · pith_short_16: TY7N2TKDAATPO7JU · pith_short_8: TY7N2TKD

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/TY7N2TKDAATPO7JUZXFPVCUW7I \
  | 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: 9e3edd4d430026f77d34cdcafa8a96fa3d204bb80b9e67185542ba2eb4c02688

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a675c019b73b158859fe07038f9df9cdf3d74b8a3c1608be321b65ca05cda20",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-01-21T06:23:56Z",
    "title_canon_sha256": "74cdd1601cc7231f8bdecc9a1b04d8e70ae74077ec3286c969fd84f203b40245"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0201326",
    "kind": "arxiv",
    "version": 1
  }
}