Pith Number

pith:DK2TAPOE

pith:2015:DK2TAPOEVYR2IXI3RWKDTNUSXT

not attested not anchored not stored refs pending

Algebraic entropy for algebraic maps

A.N.W. Hone, F. Zullo, O. Ragnisco

arxiv:1508.01440 v1 · 2015-08-06 · 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{DK2TAPOEVYR2IXI3RWKDTNUSXT}

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	2026-05-18T01:22:37.212353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ab5303dc4ae23a45d1b8d9439b692bce8bbfb7ac1499ef8e4b14a036bc4dddc

Aliases

arxiv: 1508.01440 · arxiv_version: 1508.01440v1 · doi: 10.48550/arxiv.1508.01440 · pith_short_12: DK2TAPOEVYR2 · pith_short_16: DK2TAPOEVYR2IXI3 · pith_short_8: DK2TAPOE

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/DK2TAPOEVYR2IXI3RWKDTNUSXT \
  | 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: 1ab5303dc4ae23a45d1b8d9439b692bce8bbfb7ac1499ef8e4b14a036bc4dddc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db0e861c53c9f29ffc8f4dbc17f408a3a48975ef361bfdbf637bcf7e8754a8e7",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2015-08-06T15:49:55Z",
    "title_canon_sha256": "b1c91d562837e9480b10867999937ad9ca1a4c93c2719b994912cf4e50b72b2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.01440",
    "kind": "arxiv",
    "version": 1
  }
}