Pith Number

pith:LJLBDEQQ

pith:2005:LJLBDEQQA2OZ5FUKWJUOBJ2FF6

not attested not anchored not stored refs pending

The AMIGA project. I. Optical characterization of the CIG catalog

D. Espada, E. Garcia, J. Sabater, J. Sulentic, L. Verdes-Montenegro, S. Leon, S. Verley, U. Lisenfeld

arxiv:astro-ph/0504201 v1 · 2005-04-08 · 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{LJLBDEQQA2OZ5FUKWJUOBJ2FF6}

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	2026-07-04T16:52:09.376021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a56119210069d9e968ab268e0a7452fb911817cac4463b6649f8cee1e227a89

Aliases

arxiv: astro-ph/0504201 · arxiv_version: astro-ph/0504201v1 · doi: 10.48550/arxiv.astro-ph/0504201 · pith_short_12: LJLBDEQQA2OZ · pith_short_16: LJLBDEQQA2OZ5FUK · pith_short_8: LJLBDEQQ

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/LJLBDEQQA2OZ5FUKWJUOBJ2FF6 \
  | 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: 5a56119210069d9e968ab268e0a7452fb911817cac4463b6649f8cee1e227a89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1aa382c422a3632544bf36d78464184824e8d627e0c888163eb03e7eccb92aaa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-08T12:43:43Z",
    "title_canon_sha256": "d36848b6afd16c8b551883c67d8c591e0c3f48544ea653316a096334c36dc3c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504201",
    "kind": "arxiv",
    "version": 1
  }
}