Pith Number

pith:OEOGDW3B

pith:2012:OEOGDW3BOGM2JQVUU6ETQRD3PP

not attested not anchored not stored refs pending

On the use of projectors for Hamiltonian systems and their relationship with Dirac brackets

Aurore Back (CPT), Cristel Chandre (CPT), Emanuele Tassi (CPT), Lo\"ic De Guillebon (CPT), Philip Morrison (IFS)

arxiv:1205.2347 v1 · 2012-05-10 · math-ph · math.MP · nlin.CD · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OEOGDW3BOGM2JQVUU6ETQRD3PP}

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	2026-05-18T03:31:43.163532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

711c61db617199a4c2b4a78938447b7bce4acfbd89e072432ae998f0dc7d7f45

Aliases

arxiv: 1205.2347 · arxiv_version: 1205.2347v1 · doi: 10.48550/arxiv.1205.2347 · pith_short_12: OEOGDW3BOGM2 · pith_short_16: OEOGDW3BOGM2JQVU · pith_short_8: OEOGDW3B

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/OEOGDW3BOGM2JQVUU6ETQRD3PP \
  | 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: 711c61db617199a4c2b4a78938447b7bce4acfbd89e072432ae998f0dc7d7f45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58869937c09dbf30a89d3da15e1df282f7d70da9345ac138e173a486f55e25c5",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.CD",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-05-10T19:11:05Z",
    "title_canon_sha256": "5c669a72671bb037882a97b00f356fa7062ad93cb6538cf3bc7e422c6b60d372"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2347",
    "kind": "arxiv",
    "version": 1
  }
}