Pith Number

pith:DDR27B5I

pith:2018:DDR27B5ISTM7XL6LI3UT7V4BV4

not attested not anchored not stored refs pending

Reconstructing Latent Orderings by Spectral Clustering

Alexandre d'Aspremont, Antoine Recanati, Thomas Kerdreux

arxiv:1807.07122 v1 · 2018-07-18 · cs.DS · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDR27B5ISTM7XL6LI3UT7V4BV4}

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	2026-05-18T00:10:21.258407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18e3af87a894d9fbafcb46e93fd781af1957dd1b38aad8bb4c50f1f88730fc38

Aliases

arxiv: 1807.07122 · arxiv_version: 1807.07122v1 · doi: 10.48550/arxiv.1807.07122 · pith_short_12: DDR27B5ISTM7 · pith_short_16: DDR27B5ISTM7XL6L · pith_short_8: DDR27B5I

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/DDR27B5ISTM7XL6LI3UT7V4BV4 \
  | 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: 18e3af87a894d9fbafcb46e93fd781af1957dd1b38aad8bb4c50f1f88730fc38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7facc4ceaecc426a0bc6a96f3b6b4f8a882f923223caa97d1f16bf8328ac363f",
    "cross_cats_sorted": [
      "q-bio.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-18T19:48:52Z",
    "title_canon_sha256": "2bc6254a8b3220c1d1d15cfb3920db5c2ac6b6fa43aa22ed664f4f971de624ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07122",
    "kind": "arxiv",
    "version": 1
  }
}