Pith Number

pith:5QARWTUE

pith:2016:5QARWTUE2RLXJ7X6ZJZRRD4NYV

not attested not anchored not stored refs pending

Computer-generated visual morphology catalog of ~3,000,000 SDSS galaxies

Evan Kuminski, Lior Shamir

arxiv:1602.06854 v2 · 2016-02-22 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QARWTUE2RLXJ7X6ZJZRRD4NYV}

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	2026-05-18T01:16:40.629750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec011b4e84d45774fefeca73188f8dc55d1f17f0351d9f70f64b6fa9f2181610

Aliases

arxiv: 1602.06854 · arxiv_version: 1602.06854v2 · doi: 10.48550/arxiv.1602.06854 · pith_short_12: 5QARWTUE2RLX · pith_short_16: 5QARWTUE2RLXJ7X6 · pith_short_8: 5QARWTUE

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/5QARWTUE2RLXJ7X6ZJZRRD4NYV \
  | 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: ec011b4e84d45774fefeca73188f8dc55d1f17f0351d9f70f64b6fa9f2181610

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9374febf8ece7ad36fa938d01b24e607022640aa4f27c54e4548cb9d33789d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-22T16:55:46Z",
    "title_canon_sha256": "1bd471087cecad057a540cba157eb232283d9933aad77c60fedfe5ea1c702827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06854",
    "kind": "arxiv",
    "version": 2
  }
}