Pith Number

pith:S5NAMZRF

pith:2016:S5NAMZRFACI2XJUGRWIL7HKAFT

not attested not anchored not stored refs pending

Order reduction, projectability and constraints of second-order field theories and higher-order mechanics

Jordi Gaset, Narciso Rom\'an-Roy

arxiv:1604.02074 v2 · 2016-04-07 · 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{S5NAMZRFACI2XJUGRWIL7HKAFT}

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	2026-05-18T00:27:10.099034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

975a0666250091aba6868d90bf9d402cecb19f65b6e1a3b484d4993bf82a6ff7

Aliases

arxiv: 1604.02074 · arxiv_version: 1604.02074v2 · doi: 10.48550/arxiv.1604.02074 · pith_short_12: S5NAMZRFACI2 · pith_short_16: S5NAMZRFACI2XJUG · pith_short_8: S5NAMZRF

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/S5NAMZRFACI2XJUGRWIL7HKAFT \
  | 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: 975a0666250091aba6868d90bf9d402cecb19f65b6e1a3b484d4993bf82a6ff7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83458058c2bcede3339c414f4725d6c90ca0bbd6774be35c9263b9d19b46551b",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2016-04-07T16:45:46Z",
    "title_canon_sha256": "7f683fda2496fbc278b5272c0b893ebfd8287d82cf16050c8218941c74b06ece"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02074",
    "kind": "arxiv",
    "version": 2
  }
}