Pith Number

pith:UCTRDLO3

pith:2012:UCTRDLO3JJ6TPWBRU26LWOUYEO

not attested not anchored not stored refs pending

An extension of the Dirac and Gotay-Nester theories of constraints for Dirac dynamical systems

Hern\'an Cendra, Mar\'ia Etchechoury, Sebasti\'an J. Ferraro

arxiv:1208.1953 v2 · 2012-08-09 · 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{UCTRDLO3JJ6TPWBRU26LWOUYEO}

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	2026-05-18T03:40:51.094584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0a711addb4a7d37d831a6bcbb3a98239e71c89f607621f5ec44462ebbeac53b

Aliases

arxiv: 1208.1953 · arxiv_version: 1208.1953v2 · doi: 10.48550/arxiv.1208.1953 · pith_short_12: UCTRDLO3JJ6T · pith_short_16: UCTRDLO3JJ6TPWBR · pith_short_8: UCTRDLO3

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/UCTRDLO3JJ6TPWBRU26LWOUYEO \
  | 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: a0a711addb4a7d37d831a6bcbb3a98239e71c89f607621f5ec44462ebbeac53b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "705a82166df665449d56a73d226e4c28f0a454feca83f7fbfc1c6191c8f2e3d6",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-08-09T15:35:59Z",
    "title_canon_sha256": "ac6fba9a24bce259b1826bb07d86af934d90a46c280932e41acfa79d91f1ee81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1953",
    "kind": "arxiv",
    "version": 2
  }
}