Pith Number

pith:JRYTF6GM

pith:2000:JRYTF6GM2YHDYODQTKJZJN4RVN

not attested not anchored not stored refs pending

Deep-Imaging Observations of a Candidate of an Absorbed QSO at z=0.653, AX J131831+3341

(2) Kyoto Univ., (3) Univ. of Tokyo, (4) NAOJ), F.Nakata (3), K.Ohta (2), K.Shimasaku (3), M.Akiyama (1), M.Doi (3), M.Hamabe (3), M.Kimura (3), M.Sekiguchi (3), M.Yagi (4), M.Yoshida (4), NAOJ, N.Tamura (2), S.Miyazaki (4), S.Okamura (3), T.Takata (1) ((1) Subaru Telescope, Y.Komiyama (1)

arxiv:astro-ph/0012501 v1 · 2000-12-27 · 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{JRYTF6GM2YHDYODQTKJZJN4RVN}

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	2026-05-18T01:40:45.119930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c7132f8ccd60e3c38709a9394b791ab78a890456e824b216ff0c80983b36fcb

Aliases

arxiv: astro-ph/0012501 · arxiv_version: astro-ph/0012501v1 · doi: 10.48550/arxiv.astro-ph/0012501 · pith_short_12: JRYTF6GM2YHD · pith_short_16: JRYTF6GM2YHDYODQ · pith_short_8: JRYTF6GM

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/JRYTF6GM2YHDYODQTKJZJN4RVN \
  | 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: 4c7132f8ccd60e3c38709a9394b791ab78a890456e824b216ff0c80983b36fcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f5d21f25a0011a5650d41ac356b0b4f80a84b7c3b330fa8367558760111e1ed",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-27T05:30:42Z",
    "title_canon_sha256": "c8a15f7a69735882db21bccca3841391e998f96614724883f4ec83458fb7127c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012501",
    "kind": "arxiv",
    "version": 1
  }
}