Pith Number

pith:NI523OIF

pith:1995:NI523OIFWFINUAIXXOCDHYANKB

not attested not anchored not stored refs pending

Neural computation as a tool for galaxy classification : methods and examples

A. Naim, L. Sodre, M.C. Storrie-Lombardi, O. Lahav

arxiv:astro-ph/9508012 v1 · 1995-08-03 · 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{NI523OIFWFINUAIXXOCDHYANKB}

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	2026-05-18T01:40:22.901985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a3badb905b150da0117bb8433e00d50666807e56344f3863a68f2528561d79f

Aliases

arxiv: astro-ph/9508012 · arxiv_version: astro-ph/9508012v1 · doi: 10.48550/arxiv.astro-ph/9508012 · pith_short_12: NI523OIFWFIN · pith_short_16: NI523OIFWFINUAIX · pith_short_8: NI523OIF

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/NI523OIFWFINUAIXXOCDHYANKB \
  | 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: 6a3badb905b150da0117bb8433e00d50666807e56344f3863a68f2528561d79f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec38bafe7144692e0df30f5323c2e6035f92a774b32406dfba4858385481f789",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-08-03T09:57:45Z",
    "title_canon_sha256": "e39a300d4f8939161de240da870015ab74572b91c1f5d50d4345ca8dc8906169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9508012",
    "kind": "arxiv",
    "version": 1
  }
}