Pith Number

pith:SBJXG27B

pith:2018:SBJXG27BFRNX4A4RDVBJFHK5FT

not attested not anchored not stored refs pending

A transverse knot invariant from Z2-equivariant Heegaard Floer cohomology

Sungkyung Kang

arxiv:1802.00351 v3 · 2018-02-01 · 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{SBJXG27BFRNX4A4RDVBJFHK5FT}

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	2026-05-18T00:08:48.289215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9053736be12c5b7e03911d42929d5d2ce381afaa7cbe256b413d274b08198271

Aliases

arxiv: 1802.00351 · arxiv_version: 1802.00351v3 · doi: 10.48550/arxiv.1802.00351 · pith_short_12: SBJXG27BFRNX · pith_short_16: SBJXG27BFRNX4A4R · pith_short_8: SBJXG27B

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/SBJXG27BFRNX4A4RDVBJFHK5FT \
  | 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: 9053736be12c5b7e03911d42929d5d2ce381afaa7cbe256b413d274b08198271

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e32d9ead8ea1ff6996dbcb475a89ec0909bbba8dfe8508ce2c734ee42930a2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-02-01T15:39:02Z",
    "title_canon_sha256": "b8feed91c56dbbea5e3030966917243a865f7a816365bdad5be4c9b353bce42e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00351",
    "kind": "arxiv",
    "version": 3
  }
}