Pith Number

pith:GUOE3VO6

pith:2000:GUOE3VO6B4JUAPNLWSM3T54P4A

not attested not anchored not stored refs pending

Extremely Red Objects in the Field of QSO 1213-0017: A Galaxy Concentration at z=1.31

(2) NOAO, (3) Caltech, (4) STScI), Arjun Dey (2), Charles C. Steidel (3), James R. Graham (1), Kevin A. Bundy (1), Kurt L. Adelberger (3), Mark E. Dickinson (4) ((1) UC Berkeley, Michael C. Liu (1)

arxiv:astro-ph/0002443 v1 · 2000-02-24 · 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{GUOE3VO6B4JUAPNLWSM3T54P4A}

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	2026-07-04T16:16:06.482381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

351c4dd5de0f13403dabb499b9f78fe0039caa9fdaf73e79d75f7f7fe36ec932

Aliases

arxiv: astro-ph/0002443 · arxiv_version: astro-ph/0002443v1 · doi: 10.48550/arxiv.astro-ph/0002443 · pith_short_12: GUOE3VO6B4JU · pith_short_16: GUOE3VO6B4JUAPNL · pith_short_8: GUOE3VO6

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/GUOE3VO6B4JUAPNLWSM3T54P4A \
  | 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: 351c4dd5de0f13403dabb499b9f78fe0039caa9fdaf73e79d75f7f7fe36ec932

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca3814c3f52582cc3fc88f6da3fb0a306a799e581f79d47663b597391c955f64",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-24T00:48:01Z",
    "title_canon_sha256": "09a3efa60c02e139bdeb52b015302535c7c1fce2564b3d652f9a5245d2ac16a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002443",
    "kind": "arxiv",
    "version": 1
  }
}