Pith Number

pith:S7MLNSHX

pith:2011:S7MLNSHXIJVOVS5GU4V4LX3UZB

not attested not anchored not stored refs pending

Quantum B\"acklund Transformations: some ideas and examples

Federico Zullo, Orlando Ragnisco

arxiv:1112.3755 v1 · 2011-12-16 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7MLNSHXIJVOVS5GU4V4LX3UZB}

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	2026-05-18T01:59:08.689629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97d8b6c8f7426aeacba6a72bc5df74c8690eba5aaf4f2e32542d6ce50803531b

Aliases

arxiv: 1112.3755 · arxiv_version: 1112.3755v1 · doi: 10.48550/arxiv.1112.3755 · pith_short_12: S7MLNSHXIJVO · pith_short_16: S7MLNSHXIJVOVS5G · pith_short_8: S7MLNSHX

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/S7MLNSHXIJVOVS5GU4V4LX3UZB \
  | 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: 97d8b6c8f7426aeacba6a72bc5df74c8690eba5aaf4f2e32542d6ce50803531b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44ef1ba600446f3dcf5f14e84d239cb9a7a09a2c2832deeb87f8847e0623e4a4",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2011-12-16T10:47:33Z",
    "title_canon_sha256": "571b47fa05c29e92e2ed2f1f7087d8fbfddb5df9714c9feda2a23e170a787f2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3755",
    "kind": "arxiv",
    "version": 1
  }
}