Pith Number

pith:TORJ7XV3

pith:2011:TORJ7XV3E5JG2CB4SNE2XHT3CZ

not attested not anchored not stored refs pending

Unsupervised self-organised mapping: a versatile empirical tool for object selection, classification and redshift estimation in large surveys

James E. Geach (McGill)

arxiv:1110.0005 v1 · 2011-09-30 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TORJ7XV3E5JG2CB4SNE2XHT3CZ}

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	2026-05-18T02:00:20.784699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ba29fdebb27526d083c9349ab9e7b16413a06c51bf6fec41ef5bbd05e46c930

Aliases

arxiv: 1110.0005 · arxiv_version: 1110.0005v1 · doi: 10.48550/arxiv.1110.0005 · pith_short_12: TORJ7XV3E5JG · pith_short_16: TORJ7XV3E5JG2CB4 · pith_short_8: TORJ7XV3

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/TORJ7XV3E5JG2CB4SNE2XHT3CZ \
  | 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: 9ba29fdebb27526d083c9349ab9e7b16413a06c51bf6fec41ef5bbd05e46c930

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eae6290221be06dbc52c8c2329cbb3975a8c949835806c7d9755ac778c5b514",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-09-30T20:01:49Z",
    "title_canon_sha256": "eb6f741c0fad81a8843a3da102975591d81d52881e61ad6f7c2937d677809902"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0005",
    "kind": "arxiv",
    "version": 1
  }
}