Pith Number

pith:YBGI6TQC

pith:2009:YBGI6TQCDG2EUJBSCK7ZG2CKKC

not attested not anchored not stored refs pending

Partitions and Indivisibility Properties of Countable Dimensional Vector Spaces

C. Laflamme, L. Nguyen Van The, M. Pouzet, N. Sauer

arxiv:0907.3771 v2 · 2009-07-22 · math.LO · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBGI6TQCDG2EUJBSCK7ZG2CKKC}

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	2026-05-18T03:02:44.586498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c04c8f4e0219b44a243212bf93684a50ac45268318a0b3453b7cafc1350fe872

Aliases

arxiv: 0907.3771 · arxiv_version: 0907.3771v2 · doi: 10.48550/arxiv.0907.3771 · pith_short_12: YBGI6TQCDG2E · pith_short_16: YBGI6TQCDG2EUJBS · pith_short_8: YBGI6TQC

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/YBGI6TQCDG2EUJBSCK7ZG2CKKC \
  | 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: c04c8f4e0219b44a243212bf93684a50ac45268318a0b3453b7cafc1350fe872

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4ae9b33b65dc7d93d26f6566fe710906681d07dd1b43367c47acb76ffff19ff",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2009-07-22T03:21:46Z",
    "title_canon_sha256": "5238773e7d139eb1332bc5aeca3d0e27242fa4bacae652d2aaf5f06d78775640"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3771",
    "kind": "arxiv",
    "version": 2
  }
}