Pith Number

pith:ZR3PNKFP

pith:2021:ZR3PNKFP534RX6QLKO6HPN2CT3

not attested not anchored not stored refs pending

Symmetries, constants of the motion and reduction of mechanical systems with external forces

Asier L\'opez-Gord\'on, Manuel de Le\'on, Manuel Lainz

arxiv:2101.09036 v2 · 2021-01-22 · math-ph · math.MP · math.SG · 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{ZR3PNKFP534RX6QLKO6HPN2CT3}

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	2026-07-05T04:14:23.364322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc76f6a8afeef91bfa0b53bc77b7429ef319d82d083394d4b95f5cf252379a04

Aliases

arxiv: 2101.09036 · arxiv_version: 2101.09036v2 · doi: 10.48550/arxiv.2101.09036 · pith_short_12: ZR3PNKFP534R · pith_short_16: ZR3PNKFP534RX6QL · pith_short_8: ZR3PNKFP

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/ZR3PNKFP534RX6QLKO6HPN2CT3 \
  | 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: cc76f6a8afeef91bfa0b53bc77b7429ef319d82d083394d4b95f5cf252379a04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c817f54c77b80a9ad3ebe7e725902d65169e4494cbd1fd160504c09d13af07d",
    "cross_cats_sorted": [
      "math.MP",
      "math.SG",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2021-01-22T10:21:10Z",
    "title_canon_sha256": "9d449a24c43ec592c0fb47784423192221009ed285a481a785dc1577164db3d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.09036",
    "kind": "arxiv",
    "version": 2
  }
}