Pith Number

pith:6KM2W4WG

pith:2011:6KM2W4WG7UOD3Y6SD6SV6MTJWW

not attested not anchored not stored refs pending

Schroedinger Eigenmaps for the Analysis of Bio-Medical Data

Martin Ehler, Wojciech Czaja

arxiv:1102.4086 v2 · 2011-02-20 · cs.CE · physics.data-an · physics.med-ph · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6KM2W4WG7UOD3Y6SD6SV6MTJWW}

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	2026-05-18T00:36:14.774928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f299ab72c6fd1c3de3d21fa55f3269b5aaeeed7402d79166cabc7d2bdc270646

Aliases

arxiv: 1102.4086 · arxiv_version: 1102.4086v2 · doi: 10.48550/arxiv.1102.4086 · pith_short_12: 6KM2W4WG7UOD · pith_short_16: 6KM2W4WG7UOD3Y6S · pith_short_8: 6KM2W4WG

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/6KM2W4WG7UOD3Y6SD6SV6MTJWW \
  | 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: f299ab72c6fd1c3de3d21fa55f3269b5aaeeed7402d79166cabc7d2bdc270646

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec69dcba46185df8d2bb2510bda0f01b32ae6b7d412e964843600328cc25d20e",
    "cross_cats_sorted": [
      "physics.data-an",
      "physics.med-ph",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2011-02-20T17:08:52Z",
    "title_canon_sha256": "bd42b0fc4cb3a77e39842bed224a8c1803a64ce5360d214229401b2b3daa61f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4086",
    "kind": "arxiv",
    "version": 2
  }
}