Pith Number

pith:7O2IVKDU

pith:2018:7O2IVKDU6DNP54H4KCAKWOBYMJ

not attested not anchored not stored refs pending

On topological entropy and topological pressure of non-autonomous iterated function systems

F. H. Ghane, J. Nazarian Sarkooh

arxiv:1806.03629 v2 · 2018-06-10 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7O2IVKDU6DNP54H4KCAKWOBYMJ}

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	2026-05-17T23:39:32.323538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbb48aa874f0dafef0fc5080ab3838624716f812ae3ebf9e3ba9d852927fafb0

Aliases

arxiv: 1806.03629 · arxiv_version: 1806.03629v2 · doi: 10.48550/arxiv.1806.03629 · pith_short_12: 7O2IVKDU6DNP · pith_short_16: 7O2IVKDU6DNP54H4 · pith_short_8: 7O2IVKDU

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/7O2IVKDU6DNP54H4KCAKWOBYMJ \
  | 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: fbb48aa874f0dafef0fc5080ab3838624716f812ae3ebf9e3ba9d852927fafb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d448bdc4219eb8ef4596b8ad59a742ff166e7893cc2079a0491e8935137c96d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-06-10T10:28:07Z",
    "title_canon_sha256": "9f2def2d0cb5ec9324f58c5a6b4e79829ad34366db21dc4959d97f45dc6adcb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03629",
    "kind": "arxiv",
    "version": 2
  }
}