Pith Number

pith:VXR5XSQI

pith:2001:VXR5XSQIUGQB7N7SCKKXCV7TTC

not attested not anchored not stored refs pending

Two-colour photometric selection of high redshift galaxies

1) ((1) Astrophysics, LLNL, Mark Lacy (2, Oxford; (2) IGPP, Robin Stevens (1), UC Davis)

arxiv:astro-ph/0103403 v1 · 2001-03-24 · 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{VXR5XSQIUGQB7N7SCKKXCV7TTC}

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	2026-07-04T16:22:55.932722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ade3dbca08a1a01fb7f212957157f398a341890f2b8ae2b1803d8e533c73328a

Aliases

arxiv: astro-ph/0103403 · arxiv_version: astro-ph/0103403v1 · doi: 10.48550/arxiv.astro-ph/0103403 · pith_short_12: VXR5XSQIUGQB · pith_short_16: VXR5XSQIUGQB7N7S · pith_short_8: VXR5XSQI

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/VXR5XSQIUGQB7N7SCKKXCV7TTC \
  | 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: ade3dbca08a1a01fb7f212957157f398a341890f2b8ae2b1803d8e533c73328a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "659eb8a0c55bc94b9bb3afefd88ba6405dc73d9935f093137399e6562783e3f8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-03-24T01:46:30Z",
    "title_canon_sha256": "7b1c76349a3d4994563559ed01759bc3e40f03736568e87cb736be9d996d0859"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0103403",
    "kind": "arxiv",
    "version": 1
  }
}