Pith Number

pith:VCXSMYXB

pith:2026:VCXSMYXB6BBTFYYKV7V5LA4G4P

not attested not anchored not stored refs pending

Natural frequency estimation using complex-frequency excitations

Raj Kumar Pal, Wenbo Li

arxiv:2605.12842 v1 · 2026-05-13 · physics.class-ph · cs.IT · math.IT · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VCXSMYXB6BBTFYYKV7V5LA4G4P}

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	2026-05-18T03:09:11.943442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8af2662e1f04332e30aafebd58386e3d624c5176a3cfe3baea9f19afec4648c

Aliases

arxiv: 2605.12842 · arxiv_version: 2605.12842v1 · doi: 10.48550/arxiv.2605.12842 · pith_short_12: VCXSMYXB6BBT · pith_short_16: VCXSMYXB6BBTFYYK · pith_short_8: VCXSMYXB

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/VCXSMYXB6BBTFYYKV7V5LA4G4P \
  | 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: a8af2662e1f04332e30aafebd58386e3d624c5176a3cfe3baea9f19afec4648c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3002165a50b2869b3f03cc7d104eb62aaca9d1525c873af18756b8dbf7d5b9b8",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2026-05-13T00:36:15Z",
    "title_canon_sha256": "8a82cab9ab6526354c36154ab7d3c04dca56b8e83a49be48effa764c82c5d3d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12842",
    "kind": "arxiv",
    "version": 1
  }
}