Pith Number

pith:YYZLU3IB

pith:2008:YYZLU3IBWLU4N4JKGKLDN2PUT2

not attested not anchored not stored refs pending

Hamiltonian handleslides for Heegaard Floer homology

Timothy Perutz

arxiv:0801.0564 v2 · 2008-01-03 · 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{YYZLU3IBWLU4N4JKGKLDN2PUT2}

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	2026-07-04T15:09:49.020130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c632ba6d01b2e9c6f12a329636e9f49ebb2cb7ecd3b3f367e34d121193863e87

Aliases

arxiv: 0801.0564 · arxiv_version: 0801.0564v2 · doi: 10.48550/arxiv.0801.0564 · pith_short_12: YYZLU3IBWLU4 · pith_short_16: YYZLU3IBWLU4N4JK · pith_short_8: YYZLU3IB

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/YYZLU3IBWLU4N4JKGKLDN2PUT2 \
  | 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: c632ba6d01b2e9c6f12a329636e9f49ebb2cb7ecd3b3f367e34d121193863e87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fe8f3163510b234594ff878924ee0824d62eccb46e4c2a0106d052904fc9345",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.SG",
    "submitted_at": "2008-01-03T16:59:18Z",
    "title_canon_sha256": "494b331efe3ffb07b8b2d9c7c5cfe2a1378b57197040ae6871af67906f8e19c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.0564",
    "kind": "arxiv",
    "version": 2
  }
}