Pith Number

pith:LAULP2EQ

pith:2015:LAULP2EQM3XZ4WHELY3HKNWMKF

not attested not anchored not stored refs pending

Reduction of pre-Hamiltonian actions

Antonio De Nicola, Chiara Esposito

arxiv:1507.08821 v3 · 2015-07-31 · math.DG · math-ph · math.MP · 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{LAULP2EQM3XZ4WHELY3HKNWMKF}

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	2026-05-18T00:48:05.868677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5828b7e89066ef9e58e45e367536cc514cb5bbf6bceb2b11ffa2cb8aa1d281be

Aliases

arxiv: 1507.08821 · arxiv_version: 1507.08821v3 · doi: 10.48550/arxiv.1507.08821 · pith_short_12: LAULP2EQM3XZ · pith_short_16: LAULP2EQM3XZ4WHE · pith_short_8: LAULP2EQ

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/LAULP2EQM3XZ4WHELY3HKNWMKF \
  | 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: 5828b7e89066ef9e58e45e367536cc514cb5bbf6bceb2b11ffa2cb8aa1d281be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3e58ad9c070534a05acc0ba7964c284b0b680204cd13121d21a007caf403b89",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-07-31T10:20:08Z",
    "title_canon_sha256": "42136f65d277b813731b297211cec7debbd253c181fd5b773641d19757f27416"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08821",
    "kind": "arxiv",
    "version": 3
  }
}