Pith Number

pith:TYDBVY7K

pith:2009:TYDBVY7KANPYYGYDSBOBNLGTXQ

not attested not anchored not stored refs pending

Combined frequency-amplitude nonlinear modulation: theory and applications

B. Azzerboni, F. Nizzoli, G. Consolo, G. Finocchio, G. Valenti, L. Giovannini, L. Lopez-Diaz, R. Zivieri, V. Puliafito

arxiv:0902.4901 v2 · 2009-02-27 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TYDBVY7KANPYYGYDSBOBNLGTXQ}

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	2026-05-18T02:14:38.200075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e061ae3ea035f8c1b03905c16acd3bc136f39d9b6a4271f85496bb70d422815

Aliases

arxiv: 0902.4901 · arxiv_version: 0902.4901v2 · doi: 10.48550/arxiv.0902.4901 · pith_short_12: TYDBVY7KANPY · pith_short_16: TYDBVY7KANPYYGYD · pith_short_8: TYDBVY7K

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/TYDBVY7KANPYYGYDSBOBNLGTXQ \
  | 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: 9e061ae3ea035f8c1b03905c16acd3bc136f39d9b6a4271f85496bb70d422815

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c8248ad393891006d2852d4e15006e96d5f116c5d0b6855c101081cc7aca2d6",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-02-27T20:27:46Z",
    "title_canon_sha256": "0b790ffd27297947ff5e2890cd2f870e94732c724c4f12e4e8440bc8c485ed78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4901",
    "kind": "arxiv",
    "version": 2
  }
}