Pith Number

pith:ZIIER74G

pith:2006:ZIIER74GMXRKDHUV2G65PMYAKC

not attested not anchored not stored refs pending

Connes' embedding conjecture and sums of hermitian squares

Igor Klep, Markus Schweighofer

arxiv:math/0607615 v1 · 2006-07-25 · math.OA · 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{ZIIER74GMXRKDHUV2G65PMYAKC}

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	2026-05-18T04:24:04.890613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca1048ff8665e2a19e95d1bdd7b30050992743ff01a403afee61aab696b4b222

Aliases

arxiv: math/0607615 · arxiv_version: math/0607615v1 · doi: 10.48550/arxiv.math/0607615 · pith_short_12: ZIIER74GMXRK · pith_short_16: ZIIER74GMXRKDHUV · pith_short_8: ZIIER74G

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/ZIIER74GMXRKDHUV2G65PMYAKC \
  | 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: ca1048ff8665e2a19e95d1bdd7b30050992743ff01a403afee61aab696b4b222

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d876bce146f58f07d9622f462db7b77c121d19d042b15509903e662e6235e377",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "",
    "primary_cat": "math.OA",
    "submitted_at": "2006-07-25T07:37:06Z",
    "title_canon_sha256": "9699900f548021165d8476e626ef4dc0dbbbe5742c245ce0a40a5351726a5c63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0607615",
    "kind": "arxiv",
    "version": 1
  }
}