Pith Number

pith:Z77HP5S7

pith:2026:Z77HP5S7KJ3TIBDZTJYXMCBWTZ

not attested not anchored not stored refs pending

Discrete-time generalized canonical transformations for non-autonomous systems

Damiano Rigo, David Martin de Diego, Leonardo Colombo, Nicola Sansonetto, Riccardo Muradore

arxiv:2607.12914 v1 · 2026-07-14 · math.DS · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z77HP5S7KJ3TIBDZTJYXMCBWTZ}

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	2026-07-15T01:22:24.918702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cffe77f65f52773404799a717608369e634be8ec81f41ccf9f199a7edb0e6678

Aliases

arxiv: 2607.12914 · arxiv_version: 2607.12914v1 · doi: 10.48550/arxiv.2607.12914 · pith_short_12: Z77HP5S7KJ3T · pith_short_16: Z77HP5S7KJ3TIBDZ · pith_short_8: Z77HP5S7

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/Z77HP5S7KJ3TIBDZTJYXMCBWTZ \
  | 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: cffe77f65f52773404799a717608369e634be8ec81f41ccf9f199a7edb0e6678

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54b73318ab66367dc0ef5b063b6c3c8ef75dee98c128206a168dcf3de88be0ac",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2026-07-14T15:50:17Z",
    "title_canon_sha256": "1f5ebcf98cf12e25ef6bed9dc8222ef23e46878f57188b0779552b9c4c624535"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.12914",
    "kind": "arxiv",
    "version": 1
  }
}