Pith Number

pith:AM565QM3

pith:2009:AM565QM3CZMWERYYPII3NJU55H

not attested not anchored not stored refs pending

From Lyapunov modes to the exponents for hard disk systems

Daniel Truant, Gary P. Morriss, Tony Chung

arxiv:0904.1286 v1 · 2009-04-08 · 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{AM565QM3CZMWERYYPII3NJU55H}

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	2026-05-18T02:14:06.943711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

033beec19b16596247187a11b6a69de9f4552b492e2823c2c04ea5892b42ea2f

Aliases

arxiv: 0904.1286 · arxiv_version: 0904.1286v1 · doi: 10.48550/arxiv.0904.1286 · pith_short_12: AM565QM3CZMW · pith_short_16: AM565QM3CZMWERYY · pith_short_8: AM565QM3

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/AM565QM3CZMWERYYPII3NJU55H \
  | 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: 033beec19b16596247187a11b6a69de9f4552b492e2823c2c04ea5892b42ea2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9945f0b3a7b9bc85c7523066fe615eb7b62dc2bd24adb42152722c7e02326dc4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2009-04-08T08:49:22Z",
    "title_canon_sha256": "59cf51a7086950315392113cbd454f3e25e0e617ff1be90ab0b7e7046995a408"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1286",
    "kind": "arxiv",
    "version": 1
  }
}