Pith Number

pith:WQXX5R5S

pith:2019:WQXX5R5SMAIQYL2ZTJAMOAO3GO

not attested not anchored not stored refs pending

The Mathieu Differential Equation and Generalizations to Infinite Fractafolds

Anthony Coniglio, Richard Rand, Robert S. Strichartz, Shiping Cao, Xueyan Niu

arxiv:1904.00950 v2 · 2019-04-01 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WQXX5R5SMAIQYL2ZTJAMOAO3GO}

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	2026-05-17T23:48:29.654134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b42f7ec7b260110c2f599a40c701db3398fd787176b132d0d77d1a8f2b264c17

Aliases

arxiv: 1904.00950 · arxiv_version: 1904.00950v2 · doi: 10.48550/arxiv.1904.00950 · pith_short_12: WQXX5R5SMAIQ · pith_short_16: WQXX5R5SMAIQYL2Z · pith_short_8: WQXX5R5S

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/WQXX5R5SMAIQYL2ZTJAMOAO3GO \
  | 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: b42f7ec7b260110c2f599a40c701db3398fd787176b132d0d77d1a8f2b264c17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bd4a123e7558908faf0c3fa1acfaf5688f275257fa7f1b25a5ccb99a9ae6c80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-04-01T16:39:03Z",
    "title_canon_sha256": "4cc2f460ab3c67411be3c2a8cecebe33169495282cbd7d6ce049b20ada4aec0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.00950",
    "kind": "arxiv",
    "version": 2
  }
}