Pith Number

pith:37HEX3LQ

pith:2009:37HEX3LQWWK524LNB4BW7SPZED

not attested not anchored not stored refs pending

Identification of delays and discontinuity points of unknown systems by using synchronization of chaos

Francesco Sorrentino

arxiv:0912.4902 v1 · 2009-12-24 · math-ph · math.MP · 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{37HEX3LQWWK524LNB4BW7SPZED}

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	2026-05-18T02:10:13.788593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfce4bed70b595dd716d0f036fc9f920d0efb6ede326d53ee86aace540286eaf

Aliases

arxiv: 0912.4902 · arxiv_version: 0912.4902v1 · doi: 10.48550/arxiv.0912.4902 · pith_short_12: 37HEX3LQWWK5 · pith_short_16: 37HEX3LQWWK524LN · pith_short_8: 37HEX3LQ

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/37HEX3LQWWK524LNB4BW7SPZED \
  | 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: dfce4bed70b595dd716d0f036fc9f920d0efb6ede326d53ee86aace540286eaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5a4802710bfbfe8771babfb3f3039703444795decaade8ba85a20448535aa9e",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-12-24T19:50:26Z",
    "title_canon_sha256": "7ab780174347051310f726cb0a20e8974d46a9b1c64def8d882edb0f4218a635"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4902",
    "kind": "arxiv",
    "version": 1
  }
}