Pith Number

pith:FYRW3JSP

pith:2007:FYRW3JSPR52VB7OAJTY2OLT6KS

not attested not anchored not stored refs pending

Kontsevich formality and PBW algebras

Boris Shoikhet

arxiv:0708.1634 v2 · 2007-08-12 · math.KT · 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{FYRW3JSPR52VB7OAJTY2OLT6KS}

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	2026-05-18T04:09:15.030597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e236da64f8f7550fdc04cf1a72e7e5490f66f2ac16e1b1b043eeed612f7a27f

Aliases

arxiv: 0708.1634 · arxiv_version: 0708.1634v2 · doi: 10.48550/arxiv.0708.1634 · pith_short_12: FYRW3JSPR52V · pith_short_16: FYRW3JSPR52VB7OA · pith_short_8: FYRW3JSP

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/FYRW3JSPR52VB7OAJTY2OLT6KS \
  | 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: 2e236da64f8f7550fdc04cf1a72e7e5490f66f2ac16e1b1b043eeed612f7a27f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a19918aee2c539cf8c48a59790364e1628baba5da8007fe8696aaaf4e6685d3",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "",
    "primary_cat": "math.KT",
    "submitted_at": "2007-08-12T23:02:18Z",
    "title_canon_sha256": "1b61f5ccf25873fb4c06c206563753d6d0d7a5d973caa9bf7aff308aadf6511d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.1634",
    "kind": "arxiv",
    "version": 2
  }
}