Pith Number

pith:DVGKVTWC

pith:2006:DVGKVTWCORPXKBXYQF6QFRLZ5I

not attested not anchored not stored refs pending

Tight contact structures and genus one fibered knots

John A. Baldwin

arxiv:math/0604580 v3 · 2006-04-26 · 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{DVGKVTWCORPXKBXYQF6QFRLZ5I}

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	2026-05-18T02:41:31.867080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d4caacec2745f7506f8817d02c579ea3d4be4a731e34fecff751aed7944ae6a

Aliases

arxiv: math/0604580 · arxiv_version: math/0604580v3 · doi: 10.48550/arxiv.math/0604580 · pith_short_12: DVGKVTWCORPX · pith_short_16: DVGKVTWCORPXKBXY · pith_short_8: DVGKVTWC

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/DVGKVTWCORPXKBXYQF6QFRLZ5I \
  | 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: 1d4caacec2745f7506f8817d02c579ea3d4be4a731e34fecff751aed7944ae6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17b594add24bc5274b703821912e300e5e983d74ffbaceb91fdaaa61db0fb3d3",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.SG",
    "submitted_at": "2006-04-26T23:03:28Z",
    "title_canon_sha256": "06844345d358cce4a6888b315f7eef282c270f129b39e91b0112993178454489"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0604580",
    "kind": "arxiv",
    "version": 3
  }
}