Pith Number

pith:6FINOGQB

pith:2015:6FINOGQBEZN6UU2AG2F55T6KC7

not attested not anchored not stored refs pending

Gravitational Clustering

Armen Aghajanyan

arxiv:1509.01659 v1 · 2015-09-05 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6FINOGQBEZN6UU2AG2F55T6KC7}

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	2026-05-18T01:33:50.918924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f150d71a01265bea5340368bdecfca17eae01dd4716a62edfecd6cea31afe064

Aliases

arxiv: 1509.01659 · arxiv_version: 1509.01659v1 · doi: 10.48550/arxiv.1509.01659 · pith_short_12: 6FINOGQBEZN6 · pith_short_16: 6FINOGQBEZN6UU2A · pith_short_8: 6FINOGQB

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/6FINOGQBEZN6UU2AG2F55T6KC7 \
  | 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: f150d71a01265bea5340368bdecfca17eae01dd4716a62edfecd6cea31afe064

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fea75d86f1f34bef700531cd8d643d9f5562d76f3be57a6362bab5bb0d0578d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-09-05T03:37:50Z",
    "title_canon_sha256": "2e38cfa7938dd787093c434cd633f885dfad2744f39b5980469d5e90d58dbdee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01659",
    "kind": "arxiv",
    "version": 1
  }
}