Pith Number

pith:5NBH2WFG

pith:2012:5NBH2WFGJCVQCPZOXWG6DLZPGO

not attested not anchored not stored refs pending

Lagrangian homology spheres in (A_m) Milnor fibres via C^*-equivariant A_infinity modules

Paul Seidel

arxiv:1202.1955 v3 · 2012-02-09 · math.SG · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NBH2WFGJCVQCPZOXWG6DLZPGO}

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	2026-05-18T02:38:17.848148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb427d58a648ab013f2ebd8de1af2f33b333cbeafed8a2a02c6969677f73bcbb

Aliases

arxiv: 1202.1955 · arxiv_version: 1202.1955v3 · doi: 10.48550/arxiv.1202.1955 · pith_short_12: 5NBH2WFGJCVQ · pith_short_16: 5NBH2WFGJCVQCPZO · pith_short_8: 5NBH2WFG

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/5NBH2WFGJCVQCPZOXWG6DLZPGO \
  | 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: eb427d58a648ab013f2ebd8de1af2f33b333cbeafed8a2a02c6969677f73bcbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b969f0060131b96849c796dcdedb76d41fc855db320fb1de5bf2dbe0e57a1379",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-02-09T11:22:38Z",
    "title_canon_sha256": "46970b55eefc2b96c9fbd853c47b6bd8f126c7acf8ad62cd5790f522c4a968b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1955",
    "kind": "arxiv",
    "version": 3
  }
}