Pith Number

pith:7SPAIJOI

pith:2017:7SPAIJOIOLGGKBCGQHGCT4FKUB

not attested not anchored not stored refs pending

Geometry of Routh reduction

Katarzyna Grabowska, Pawe{\l} Urba\'nski

arxiv:1708.09769 v1 · 2017-08-31 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7SPAIJOIOLGGKBCGQHGCT4FKUB}

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	2026-05-18T00:36:15.154682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc9e0425c872cc65044681cc29f0aaa07612ad65b218bd859cf63f9b2e0e30ee

Aliases

arxiv: 1708.09769 · arxiv_version: 1708.09769v1 · doi: 10.48550/arxiv.1708.09769 · pith_short_12: 7SPAIJOIOLGG · pith_short_16: 7SPAIJOIOLGGKBCG · pith_short_8: 7SPAIJOI

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/7SPAIJOIOLGGKBCGQHGCT4FKUB \
  | 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: fc9e0425c872cc65044681cc29f0aaa07612ad65b218bd859cf63f9b2e0e30ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b7ac8f69bb94e50d9b975f4f8a9585bd94ae44957a0382ab23597b61202c62f",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-08-31T15:22:17Z",
    "title_canon_sha256": "c2374707d81bedd4d14311ecc258a3c484d142aa1f6ac1639cff72de3d249619"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09769",
    "kind": "arxiv",
    "version": 1
  }
}