Pith Number

pith:W337ISJT

pith:2007:W337ISJT7TBKQBSQQK4QE55LYB

not attested not anchored not stored refs pending

Properly infinite C(X)-algebras and K_1-injectivity

Etienne Blanchard, Mikael Rordam, Randi Rohde

arxiv:0704.1554 v1 · 2007-04-12 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W337ISJT7TBKQBSQQK4QE55LYB}

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	2026-05-18T04:34:55.652404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6f7f44933fcc2a8065082b90277abc04e1596f0db571496fb42654b0fccc4e0

Aliases

arxiv: 0704.1554 · arxiv_version: 0704.1554v1 · doi: 10.48550/arxiv.0704.1554 · pith_short_12: W337ISJT7TBK · pith_short_16: W337ISJT7TBKQBSQ · pith_short_8: W337ISJT

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/W337ISJT7TBKQBSQQK4QE55LYB \
  | 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: b6f7f44933fcc2a8065082b90277abc04e1596f0db571496fb42654b0fccc4e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a313f67ec52497c598951cba8aab164c5bd043af50302250eafb4a418f697615",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.OA",
    "submitted_at": "2007-04-12T10:13:16Z",
    "title_canon_sha256": "6b1b0c33ae40cc878e1188bc88c752757ab3d0d396df81c501b9e5e4bcbb8b79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.1554",
    "kind": "arxiv",
    "version": 1
  }
}