Pith Number

pith:KG2LSKL5

pith:2006:KG2LSKL5DWJVSLUJJFYTAWXFGO

not attested not anchored not stored refs pending

Invariants of contact structures from open books

Burak Ozbagci, John B. Etnyre

arxiv:math/0605441 v1 · 2006-05-16 · math.GT · 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{KG2LSKL5DWJVSLUJJFYTAWXFGO}

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.

Cited by

1 paper in Pith

Boundary framings for locally conformally symplectic four-manifolds

Receipt and verification

First computed	2026-05-18T00:12:19.900366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51b4b9297d1d93592e894971305ae5338ed69e89018d35cb0faf35729ede6a22

Aliases

arxiv: math/0605441 · arxiv_version: math/0605441v1 · doi: 10.48550/arxiv.math/0605441 · pith_short_12: KG2LSKL5DWJV · pith_short_16: KG2LSKL5DWJVSLUJ · pith_short_8: KG2LSKL5

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/KG2LSKL5DWJVSLUJJFYTAWXFGO \
  | 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: 51b4b9297d1d93592e894971305ae5338ed69e89018d35cb0faf35729ede6a22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c14626c6d5cb45db962ace53c8b4bd8d3f6394c907b1227b01747271171f13fa",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2006-05-16T16:24:28Z",
    "title_canon_sha256": "37e22fb8ab98e1e86c8008df3c7a14f167c9cb8cf9ba97f09e00b7d1133edaef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0605441",
    "kind": "arxiv",
    "version": 1
  }
}