Pith Number

pith:U74NEF6S

pith:2012:U74NEF6SVAARJFQ6OPYXCB2HCO

not attested not anchored not stored refs pending

Exact Analytic Solution for the Rotation of a Rigid Body having Spherical Ellipsoid of Inertia and Subjected to a Constant Torque

Marcello Romano

arxiv:1204.3403 v1 · 2012-04-16 · physics.class-ph · math.DS · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U74NEF6SVAARJFQ6OPYXCB2HCO}

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	2026-05-18T03:57:51.599119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f8d217d2a80114961e73f1710747139e41f53d6807b80bdf4334da42fa8825

Aliases

arxiv: 1204.3403 · arxiv_version: 1204.3403v1 · doi: 10.48550/arxiv.1204.3403 · pith_short_12: U74NEF6SVAAR · pith_short_16: U74NEF6SVAARJFQ6 · pith_short_8: U74NEF6S

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/U74NEF6SVAARJFQ6OPYXCB2HCO \
  | 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: a7f8d217d2a80114961e73f1710747139e41f53d6807b80bdf4334da42fa8825

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6fa3baf8d3e383bcdcac0a0314d7401555ac365d255dbcd4afa5561d5bc2040",
    "cross_cats_sorted": [
      "math.DS",
      "nlin.SI"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2012-04-16T08:39:30Z",
    "title_canon_sha256": "7f3376ad2af1e569ce97a847dc4e80894e6db40df0839c4e8b23ef20ef18a385"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3403",
    "kind": "arxiv",
    "version": 1
  }
}