Pith Number

pith:MJP6W7BX

pith:2008:MJP6W7BXXBP4YJDIXBXNXIFNXN

not attested not anchored not stored refs pending

Floer homology for 2-torsion instanton invariants

Hirofumi Sasahira

arxiv:0811.0644 v3 · 2008-11-05 · 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{MJP6W7BXXBP4YJDIXBXNXIFNXN}

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	2026-05-18T04:41:52.971747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

625feb7c37b85fcc2468b86edba0adbb4b482471bb6123d0d8ed38015cbd9c6c

Aliases

arxiv: 0811.0644 · arxiv_version: 0811.0644v3 · doi: 10.48550/arxiv.0811.0644 · pith_short_12: MJP6W7BXXBP4 · pith_short_16: MJP6W7BXXBP4YJDI · pith_short_8: MJP6W7BX

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/MJP6W7BXXBP4YJDIXBXNXIFNXN \
  | 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: 625feb7c37b85fcc2468b86edba0adbb4b482471bb6123d0d8ed38015cbd9c6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74355b3ff7c9fc7b08a40d647facb5a36b6ddb4e205264376e9e733d495ad441",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2008-11-05T04:12:11Z",
    "title_canon_sha256": "8f259fbaad3d1db3c33dfc8177760fcff15d161e38a051feb6362f73da1cbcbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0644",
    "kind": "arxiv",
    "version": 3
  }
}