Pith Number

pith:FZBH7FSI

pith:2009:FZBH7FSILZTWGJSOSYIVXP54MZ

not attested not anchored not stored refs pending

Quilted Floer Cohomology

Chris Woodward, Katrin Wehrheim

arxiv:0905.1370 v2 · 2009-05-09 · math.SG · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZBH7FSILZTWGJSOSYIVXP54MZ}

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	2026-05-18T02:38:18.853204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e427f96485e6763264e96115bbfbc667e911ba31cecd125ed121a91e2bac654

Aliases

arxiv: 0905.1370 · arxiv_version: 0905.1370v2 · doi: 10.48550/arxiv.0905.1370 · pith_short_12: FZBH7FSILZTW · pith_short_16: FZBH7FSILZTWGJSO · pith_short_8: FZBH7FSI

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/FZBH7FSILZTWGJSOSYIVXP54MZ \
  | 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: 2e427f96485e6763264e96115bbfbc667e911ba31cecd125ed121a91e2bac654

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdf8c1881d0f8f609a7548f6012f16dad50de4cb9c26d5ef584ca0eb457832cb",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2009-05-09T03:43:37Z",
    "title_canon_sha256": "7900cad7f9fb07694a5d645fd510841de0d91dc9adb2cbc4137743f3c703e447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1370",
    "kind": "arxiv",
    "version": 2
  }
}