Pith Number

pith:REOU75W5

pith:2004:REOU75W5TETBAJMQ64KRK2MEPV

not attested not anchored not stored refs pending

The geometry of nondegeneracy conditions in completely integrable systems

Nicolas Roy

arxiv:math/0403412 v1 · 2004-03-24 · math.DG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{REOU75W5TETBAJMQ64KRK2MEPV}

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	2026-05-18T01:05:26.496177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

891d4ff6dd9926102590f7151569847d535c5e6f051a5a24055259c6be25f3cc

Aliases

arxiv: math/0403412 · arxiv_version: math/0403412v1 · doi: 10.48550/arxiv.math/0403412 · pith_short_12: REOU75W5TETB · pith_short_16: REOU75W5TETBAJMQ · pith_short_8: REOU75W5

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/REOU75W5TETBAJMQ64KRK2MEPV \
  | 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: 891d4ff6dd9926102590f7151569847d535c5e6f051a5a24055259c6be25f3cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cba07a7b611c0adef0fba45437d99847773ccd7adcb1a1382ee395be9a5cbe05",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2004-03-24T13:58:52Z",
    "title_canon_sha256": "3940e936f040e33d15a76139a9150782d878e34918138c7b83a59f0c94f4fed9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0403412",
    "kind": "arxiv",
    "version": 1
  }
}