Pith Number

pith:26DEJEIW

pith:2004:26DEJEIWRMVJZSKL7CVJIFFTTY

not attested not anchored not stored refs pending

Homotopy properties of Hamiltonian group actions

Dusa McDuff, Jarek Kedra

arxiv:math/0404539 v3 · 2004-04-29 · math.SG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26DEJEIWRMVJZSKL7CVJIFFTTY}

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	2026-05-18T02:38:00.098084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7864491168b2a9cc94bf8aa9414b39e029effaa7b2b95e64f444aa2f60f90a6

Aliases

arxiv: math/0404539 · arxiv_version: math/0404539v3 · doi: 10.48550/arxiv.math/0404539 · pith_short_12: 26DEJEIWRMVJ · pith_short_16: 26DEJEIWRMVJZSKL · pith_short_8: 26DEJEIW

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/26DEJEIWRMVJZSKL7CVJIFFTTY \
  | 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: d7864491168b2a9cc94bf8aa9414b39e029effaa7b2b95e64f444aa2f60f90a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76f927f0b24435a51def5339fcb2bb42b4ece90844ffaa91d9d6bb0cb30c77d6",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.SG",
    "submitted_at": "2004-04-29T19:52:26Z",
    "title_canon_sha256": "67707977d3b7cc34db730fe65c0b8ddacbd214cd28d9ccf91d20b10f9ad316ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0404539",
    "kind": "arxiv",
    "version": 3
  }
}