Pith Number

pith:VTIFO6D5

pith:2009:VTIFO6D5WBCFRDTLMGYIKSYK46

not attested not anchored not stored refs pending

Algebraic Change-Point Detection

C\'edric Join (INRIA Saclay - Ile de France, CRAN), INRIA Saclay - Ile de France), Mamadou Mboup (INRIA Saclay - Ile de France), Michel Fliess (LIX

arxiv:0912.1178 v1 · 2009-12-07 · cs.NA · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VTIFO6D5WBCFRDTLMGYIKSYK46}

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	2026-05-18T01:04:59.428484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acd057787db044588e6b61b0854b0ae785669c6689f27f986ee797f79e7c3bd0

Aliases

arxiv: 0912.1178 · arxiv_version: 0912.1178v1 · doi: 10.48550/arxiv.0912.1178 · pith_short_12: VTIFO6D5WBCF · pith_short_16: VTIFO6D5WBCFRDTL · pith_short_8: VTIFO6D5

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/VTIFO6D5WBCFRDTLMGYIKSYK46 \
  | 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: acd057787db044588e6b61b0854b0ae785669c6689f27f986ee797f79e7c3bd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03884b8caadfcf635cc34ad24a4a573d6c3859d493a4249495c6ad1d6dba8e9e",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2009-12-07T07:57:08Z",
    "title_canon_sha256": "b7956aa841d041b09fb93552aba0a3f58dae3ed81a8059c0a47629bdb716d852"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1178",
    "kind": "arxiv",
    "version": 1
  }
}