Pith Number

pith:BCAR5NHQ

pith:2012:BCAR5NHQ4QST32JE7JZUMM7LPY

not attested not anchored not stored refs pending

An undergraduate study of harmonic and parametric motion of a simple spring-mass system from motion waveforms

Fabrizio Castelli, Ilario Boscolo, Marco Stellato

arxiv:1208.1126 v3 · 2012-08-06 · physics.ed-ph · physics.class-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{BCAR5NHQ4QST32JE7JZUMM7LPY}

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	2026-05-18T03:22:06.082822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08811eb4f0e4253de924fa734633eb7e3469ec0e697b073549fed6dbfb381684

Aliases

arxiv: 1208.1126 · arxiv_version: 1208.1126v3 · doi: 10.48550/arxiv.1208.1126 · pith_short_12: BCAR5NHQ4QST · pith_short_16: BCAR5NHQ4QST32JE · pith_short_8: BCAR5NHQ

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/BCAR5NHQ4QST32JE7JZUMM7LPY \
  | 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: 08811eb4f0e4253de924fa734633eb7e3469ec0e697b073549fed6dbfb381684

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e991306da7cb6d1a169f98b07a0e37d2e698ddd834ec67ad4a5f0713c0cc964",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2012-08-06T09:51:59Z",
    "title_canon_sha256": "a7938ceac09bebb669962dfd4ae8bf5040a607cbc5cc62ca9aa26d66d372127e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1126",
    "kind": "arxiv",
    "version": 3
  }
}