Pith Number

pith:X4OVXEBG

pith:2011:X4OVXEBGGRWCV6TJE4BSWFDFV5

not attested not anchored not stored refs pending

A frequency approach to topological identification and graphical modeling

Giacomo Innocenti

arxiv:1108.1549 v1 · 2011-08-07 · cs.SY · cs.SI · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4OVXEBGGRWCV6TJE4BSWFDFV5}

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	2026-05-18T02:21:42.399800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf1d5b9026346c2afa6927032b1465af49b9ee11ab37f582c192b08fdfdb28f8

Aliases

arxiv: 1108.1549 · arxiv_version: 1108.1549v1 · doi: 10.48550/arxiv.1108.1549 · pith_short_12: X4OVXEBGGRWC · pith_short_16: X4OVXEBGGRWCV6TJ · pith_short_8: X4OVXEBG

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/X4OVXEBGGRWCV6TJE4BSWFDFV5 \
  | 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: bf1d5b9026346c2afa6927032b1465af49b9ee11ab37f582c192b08fdfdb28f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e65f3c344f61981962d435ae0cc8b6e21697242049b68f5885fb301a84dd9941",
    "cross_cats_sorted": [
      "cs.SI",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2011-08-07T15:21:14Z",
    "title_canon_sha256": "caf6658863a25359ad8a5e928b57d6eb8e2ed6f4fdbde2c4bbc4f3e8c17a26de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1549",
    "kind": "arxiv",
    "version": 1
  }
}