Pith Number

pith:DFLD4JZ5

pith:2012:DFLD4JZ5QEAAY76FAX3IEILIXW

not attested not anchored not stored refs pending

Topological entropy and secondary folding

Jean-Luc Thiffeault, Sarah Tumasz

arxiv:1204.6730 v1 · 2012-04-30 · math.DS · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DFLD4JZ5QEAAY76FAX3IEILIXW}

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	2026-05-18T03:24:52.693024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19563e273d81000c7fc505f6822168bda4b31fc04a13ba8f173a50027cf0b2ed

Aliases

arxiv: 1204.6730 · arxiv_version: 1204.6730v1 · doi: 10.48550/arxiv.1204.6730 · pith_short_12: DFLD4JZ5QEAA · pith_short_16: DFLD4JZ5QEAAY76F · pith_short_8: DFLD4JZ5

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/DFLD4JZ5QEAAY76FAX3IEILIXW \
  | 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: 19563e273d81000c7fc505f6822168bda4b31fc04a13ba8f173a50027cf0b2ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd21ae0bb07f6fe823aaa0eead3d419e53770c46134d23f018edbcf4d794e7cd",
    "cross_cats_sorted": [
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-04-30T19:16:29Z",
    "title_canon_sha256": "670a3fe677296d7f1070dcd1db3db9a5ca1cc56267ccab4e4170ea0bababb587"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6730",
    "kind": "arxiv",
    "version": 1
  }
}