Pith Number

pith:U3LM3USQ

pith:2015:U3LM3USQV4D65IFHANMQBCYT6W

not attested not anchored not stored refs pending

Khovanov homology from Floer cohomology

Ivan Smith, Mohammed Abouzaid

arxiv:1504.01230 v2 · 2015-04-06 · 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{U3LM3USQV4D65IFHANMQBCYT6W}

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	2026-05-18T00:15:38.281574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6d6cdd250af07eea0a70359008b13f5ad38c9d2dce733e330f6636b84f8c19f

Aliases

arxiv: 1504.01230 · arxiv_version: 1504.01230v2 · doi: 10.48550/arxiv.1504.01230 · pith_short_12: U3LM3USQV4D6 · pith_short_16: U3LM3USQV4D65IFH · pith_short_8: U3LM3USQ

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/U3LM3USQV4D65IFHANMQBCYT6W \
  | 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: a6d6cdd250af07eea0a70359008b13f5ad38c9d2dce733e330f6636b84f8c19f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9df306703139b1ba7c06a58bf7b559943af941f3450622a484a56a55c05a7d26",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2015-04-06T08:14:10Z",
    "title_canon_sha256": "59fe613dcb7f5c024aa9a1680984da164d2a744d8564f64cf69e135edee86d18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01230",
    "kind": "arxiv",
    "version": 2
  }
}