Pith Number

pith:QNOZYFO4

pith:2016:QNOZYFO4FHI3OFF35HJB3EM46J

not attested not anchored not stored refs pending

Cellular Legendrian contact homology for surfaces, part II

Dan Rutherford, Michael Sullivan

arxiv:1608.03011 v2 · 2016-08-10 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNOZYFO4FHI3OFF35HJB3EM46J}

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	2026-05-18T01:00:59.909694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

835d9c15dc29d1b714bbe9d21d919cf254c9dd16d428295b6ac8a63ec734a19d

Aliases

arxiv: 1608.03011 · arxiv_version: 1608.03011v2 · doi: 10.48550/arxiv.1608.03011 · pith_short_12: QNOZYFO4FHI3 · pith_short_16: QNOZYFO4FHI3OFF3 · pith_short_8: QNOZYFO4

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/QNOZYFO4FHI3OFF35HJB3EM46J \
  | 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: 835d9c15dc29d1b714bbe9d21d919cf254c9dd16d428295b6ac8a63ec734a19d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccc3eaec457b2b9e7c3660ad5791592eb4ea05be44aef5a792ac7a9a4f3f9d15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2016-08-10T00:37:33Z",
    "title_canon_sha256": "810dd9911b714d397db28020d7128354ebfe1059a1439bcfb2e6ebeed5dc7fbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03011",
    "kind": "arxiv",
    "version": 2
  }
}