Pith Number

pith:USNLRAE6

pith:2016:USNLRAE6X5FBQFIASE6IQYXRUA

not attested not anchored not stored refs pending

Knot contact homology, string topology, and the cord algebra

Janko Latschev, Kai Cieliebak, Lenhard Ng, Tobias Ekholm

arxiv:1601.02167 v2 · 2016-01-09 · 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{USNLRAE6X5FBQFIASE6IQYXRUA}

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	2026-05-18T00:44:01.708006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a49ab8809ebf4a181500913c8862f1a02b5afe2ce64328c5f389f05d1e2dcf2c

Aliases

arxiv: 1601.02167 · arxiv_version: 1601.02167v2 · doi: 10.48550/arxiv.1601.02167 · pith_short_12: USNLRAE6X5FB · pith_short_16: USNLRAE6X5FBQFIA · pith_short_8: USNLRAE6

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/USNLRAE6X5FBQFIASE6IQYXRUA \
  | 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: a49ab8809ebf4a181500913c8862f1a02b5afe2ce64328c5f389f05d1e2dcf2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02805ec91df05fb4a0d01f3766be1a4ca2c04e86d2e34c4ad998400dfd9ad40e",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2016-01-09T23:58:10Z",
    "title_canon_sha256": "9a481606f7b3a8e6d820c9a35150a388f7d9cfedef4a1ffdf3a9c22384ca2244"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02167",
    "kind": "arxiv",
    "version": 2
  }
}