Pith Number

pith:I3G2VPIG

pith:2026:I3G2VPIGGAC3JMZRADCL66GLVA

not attested not anchored not stored refs pending

Canonical frames in contact 3-manifolds and applications

Alejandro Vicente, Brayan Ferreira, Marcelo Miranda

arxiv:2603.30027 v2 · 2026-03-31 · math.SG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I3G2VPIGGAC3JMZRADCL66GLVA}

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	2026-06-23T00:11:49.342589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46cdaabd063005b4b33100c4bf78cba82a8cf54b7f6d7c12ee0853b70cfb80e3

Aliases

arxiv: 2603.30027 · arxiv_version: 2603.30027v2 · doi: 10.48550/arxiv.2603.30027 · pith_short_12: I3G2VPIGGAC3 · pith_short_16: I3G2VPIGGAC3JMZR · pith_short_8: I3G2VPIG

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/I3G2VPIGGAC3JMZRADCL66GLVA \
  | 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: 46cdaabd063005b4b33100c4bf78cba82a8cf54b7f6d7c12ee0853b70cfb80e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "811de597dfc5414e46a5ba11d9f0c2de52441a88f95faf4aaa0d75258ab283ef",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2026-03-31T17:26:03Z",
    "title_canon_sha256": "d0f259c5f96486ea7893c3452ae3670374261948d78ed63cedb9838a85070681"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.30027",
    "kind": "arxiv",
    "version": 2
  }
}