Pith Number

pith:BF4P4NCO

pith:2019:BF4P4NCOFUYDKK36W5SWP5XITO

not attested not anchored not stored refs pending

A two-category of Hamiltonian manifolds, and a (1+1+1) field theory

Guillem Cazassus

arxiv:1903.10686 v3 · 2019-03-26 · math.SG · math.CT · 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{BF4P4NCOFUYDKK36W5SWP5XITO}

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	2026-07-05T04:00:10.337050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0978fe344e2d30352b7eb76567f6e89b989d78e74da385abc546a6612746e12d

Aliases

arxiv: 1903.10686 · arxiv_version: 1903.10686v3 · doi: 10.48550/arxiv.1903.10686 · pith_short_12: BF4P4NCOFUYD · pith_short_16: BF4P4NCOFUYDKK36 · pith_short_8: BF4P4NCO

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/BF4P4NCOFUYDKK36W5SWP5XITO \
  | 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: 0978fe344e2d30352b7eb76567f6e89b989d78e74da385abc546a6612746e12d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c196802dfe8e3761f89669ae71ddb19824d06ffc82e6e2d26faecb2689227c04",
    "cross_cats_sorted": [
      "math.CT",
      "math.GT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2019-03-26T05:49:56Z",
    "title_canon_sha256": "9154ad6403579455da9ddc0836d5a983d8ad0283c6ca0094d7dadac30b48fe9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10686",
    "kind": "arxiv",
    "version": 3
  }
}