Pith Number

pith:HII2JDC4

pith:2008:HII2JDC4ANXYZTPETRQFR6SXFM

not attested not anchored not stored refs pending

The von Neumann entropy of networks

Filippo Passerini, Simone Severini

arxiv:0812.2597 v2 · 2008-12-14 · cond-mat.dis-nn · q-bio.MN · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HII2JDC4ANXYZTPETRQFR6SXFM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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.

Cited by

1 paper in Pith

SEER: Spectral Entropy Encoding of Roles for Context-Aware Attention-Based Design Pattern Detection

Receipt and verification

First computed	2026-05-18T03:57:25.530134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a11a48c5c036f8ccde49c6058fa572b12b4202a2a7ed17be1a30250f35fbdc6

Aliases

arxiv: 0812.2597 · arxiv_version: 0812.2597v2 · doi: 10.48550/arxiv.0812.2597 · pith_short_12: HII2JDC4ANXY · pith_short_16: HII2JDC4ANXYZTPE · pith_short_8: HII2JDC4

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/HII2JDC4ANXYZTPETRQFR6SXFM \
  | 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: 3a11a48c5c036f8ccde49c6058fa572b12b4202a2a7ed17be1a30250f35fbdc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd328e090baaa822e2c5826ec6cd07a014810f3cc6d7352af00c299665468159",
    "cross_cats_sorted": [
      "q-bio.MN",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.dis-nn",
    "submitted_at": "2008-12-14T05:23:10Z",
    "title_canon_sha256": "11083126bf120101f4de65bbe14b969b7e6b6725ebbbe1b504c850e88550051a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.2597",
    "kind": "arxiv",
    "version": 2
  }
}