Pith Number

pith:3VCUAMJD

pith:2004:3VCUAMJDI3TVOBPAQP6O3FIYRC

not attested not anchored not stored refs pending

Spectroscopy in the Presence of Geometrical Constraints: A Torsional Pendulum

Jason N. Hancock, Trieu T. Mai, Zack Schlesinger

arxiv:physics/0409105 v2 · 2004-09-21 · physics.ed-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3VCUAMJDI3TVOBPAQP6O3FIYRC}

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	2026-07-04T14:50:15.511056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd4540312346e75705e083fced951888a8ceadfc4cea27b544ed63fc6f18c124

Aliases

arxiv: physics/0409105 · arxiv_version: physics/0409105v2 · doi: 10.48550/arxiv.physics/0409105 · pith_short_12: 3VCUAMJDI3TV · pith_short_16: 3VCUAMJDI3TVOBPA · pith_short_8: 3VCUAMJD

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/3VCUAMJDI3TVOBPAQP6O3FIYRC \
  | 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: dd4540312346e75705e083fced951888a8ceadfc4cea27b544ed63fc6f18c124

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a500a1b1ce4bdbae0393122ec4a4bbdf8e53268dab078f6e2bd04351aa661eec",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2004-09-21T07:46:01Z",
    "title_canon_sha256": "2103dfa27f03af581765c4bf599faf7a35fa78de277e497c8f546b21c96d5a0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0409105",
    "kind": "arxiv",
    "version": 2
  }
}