Pith Number

pith:PK2OK7CH

pith:2017:PK2OK7CH5ZNETSBI4FZQ3VD56L

not attested not anchored not stored refs pending

Faithful Semitoric Systems

Daniele Sepe, Margaret Symington, Silvia Sabatini, Sonja Hohloch

arxiv:1706.09935 v3 · 2017-06-29 · math.SG · math.DS · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PK2OK7CH5ZNETSBI4FZQ3VD56L}

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	2026-05-18T00:08:00.846069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab4e57c47ee5a49c828e1730dd47df2dd389ec6c359fb6c7c904fc0d41dc6a8

Aliases

arxiv: 1706.09935 · arxiv_version: 1706.09935v3 · doi: 10.48550/arxiv.1706.09935 · pith_short_12: PK2OK7CH5ZNE · pith_short_16: PK2OK7CH5ZNETSBI · pith_short_8: PK2OK7CH

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/PK2OK7CH5ZNETSBI4FZQ3VD56L \
  | 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: 7ab4e57c47ee5a49c828e1730dd47df2dd389ec6c359fb6c7c904fc0d41dc6a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3459312a97ea241f96cff87da53f9bed47fb6cff93f9f64fa3ccb3c24d3b96ae",
    "cross_cats_sorted": [
      "math.DS",
      "nlin.SI"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2017-06-29T19:42:44Z",
    "title_canon_sha256": "823b20a360a1f6f22fca7c1dc39b3c41b49fc3e166af6257d86c08c451054ef0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09935",
    "kind": "arxiv",
    "version": 3
  }
}