Pith Number

pith:YOIKYQ23

pith:2013:YOIKYQ23RM5FFPTONTXQMYFDRV

not attested not anchored not stored refs pending

Contact structures, deformations and taut foliations

Jonathan Bowden

arxiv:1304.3833 v3 · 2013-04-13 · math.GT · math.DS · 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{YOIKYQ23RM5FFPTONTXQMYFDRV}

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	2026-05-18T01:15:47.332973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c390ac435b8b3a52be6e6cef0660a38d478e72fcb85ebbd9b0622453117a0166

Aliases

arxiv: 1304.3833 · arxiv_version: 1304.3833v3 · doi: 10.48550/arxiv.1304.3833 · pith_short_12: YOIKYQ23RM5F · pith_short_16: YOIKYQ23RM5FFPTO · pith_short_8: YOIKYQ23

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/YOIKYQ23RM5FFPTONTXQMYFDRV \
  | 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: c390ac435b8b3a52be6e6cef0660a38d478e72fcb85ebbd9b0622453117a0166

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bececc094919acd06187afc061ecfd4646fbdad2def4a118aa66a5a8767cb151",
    "cross_cats_sorted": [
      "math.DS",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-04-13T18:43:52Z",
    "title_canon_sha256": "7c4d54f21780957093356e1e09725ddbf3ce4587a46aa749416ce8690ab2508a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3833",
    "kind": "arxiv",
    "version": 3
  }
}