Pith Number

pith:POLSOIOB

pith:2013:POLSOIOBKH6KRRDMZCQJ2WMC2G

not attested not anchored not stored refs pending

Periodic perturbations of constrained motion problems on a class of implicitly defined manifolds

Alessandro Calamai, Marco Spadini

arxiv:1304.6114 v3 · 2013-04-22 · math.CA · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{POLSOIOBKH6KRRDMZCQJ2WMC2G}

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	2026-05-18T02:51:42.406354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b972721c151fca8c46cc8a09d5982d1b1a61cbcd267b2ff50d5de2bdc3da299

Aliases

arxiv: 1304.6114 · arxiv_version: 1304.6114v3 · doi: 10.48550/arxiv.1304.6114 · pith_short_12: POLSOIOBKH6K · pith_short_16: POLSOIOBKH6KRRDM · pith_short_8: POLSOIOB

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/POLSOIOBKH6KRRDMZCQJ2WMC2G \
  | 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: 7b972721c151fca8c46cc8a09d5982d1b1a61cbcd267b2ff50d5de2bdc3da299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "510dac316779fdb05221db1e88d859a6b3b661ca753f90ada29196868840ae7e",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2013-04-22T21:53:54Z",
    "title_canon_sha256": "2e0c7d0f7649d165b3c0968114a6fc92ac0e51e7d13696c063ebf3c86fbe71d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6114",
    "kind": "arxiv",
    "version": 3
  }
}