Pith Number

pith:PB33KMZS

pith:2013:PB33KMZSGDZ3Q63MASCSIDP7YG

not attested not anchored not stored refs pending

Efficient Computation of Invariant Tori in Volume-Preserving Maps

Adam M. Fox, James D. Meiss

arxiv:1309.7226 v1 · 2013-09-27 · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PB33KMZSGDZ3Q63MASCSIDP7YG}

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	2026-05-18T03:11:56.901561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7877b5333230f3b87b6c0485240dffc197d67ee6c5c02af6a07a29f9806a39db

Aliases

arxiv: 1309.7226 · arxiv_version: 1309.7226v1 · doi: 10.48550/arxiv.1309.7226 · pith_short_12: PB33KMZSGDZ3 · pith_short_16: PB33KMZSGDZ3Q63M · pith_short_8: PB33KMZS

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/PB33KMZSGDZ3Q63MASCSIDP7YG \
  | 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: 7877b5333230f3b87b6c0485240dffc197d67ee6c5c02af6a07a29f9806a39db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "445f3c0c87d24d29a7b63c31c02fe4c6f72970e5cd76446818f95a8fc8fed492",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2013-09-27T12:51:56Z",
    "title_canon_sha256": "2f34f10ba431a055866675e8c8c55454ba5c575e58d41a8e7da2768224afdd25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7226",
    "kind": "arxiv",
    "version": 1
  }
}