Pith Number

pith:556P5CO6

pith:2015:556P5CO6YXOVVRT75LCJAO5ZZH

not attested not anchored not stored refs pending

Algebraic entropy of an extended Hietarinta-Viallet equation

Masataka Kanki, Takafumi Mase, Tetsuji Tokihiro

arxiv:1502.02415 v3 · 2015-02-09 · math-ph · math.MP · nlin.CD · 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{556P5CO6YXOVVRT75LCJAO5ZZH}

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	2026-05-18T00:07:28.730197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef7cfe89dec5dd5ac67feac4903bb9c9f51ddcb804ade328f7e1586eac70d5f5

Aliases

arxiv: 1502.02415 · arxiv_version: 1502.02415v3 · doi: 10.48550/arxiv.1502.02415 · pith_short_12: 556P5CO6YXOV · pith_short_16: 556P5CO6YXOVVRT7 · pith_short_8: 556P5CO6

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/556P5CO6YXOVVRT75LCJAO5ZZH \
  | 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: ef7cfe89dec5dd5ac67feac4903bb9c9f51ddcb804ade328f7e1586eac70d5f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0c0ff9110056b5c90f6a562267054d82a3419e4bb3766f62a1868fa8d69ac79",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.CD",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-02-09T10:09:59Z",
    "title_canon_sha256": "4f0f707a99dabac0a06804f04fa94010d199691074fdd55e8eea23621e48ec83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02415",
    "kind": "arxiv",
    "version": 3
  }
}