Pith Number

pith:MTGE7YFU

pith:2018:MTGE7YFUSFMDPJNSAEL7IMHB5R

not attested not anchored not stored refs pending

Rhodonea curves as sampling trajectories for spectral interpolation on the unit disk

Wolfgang Erb

arxiv:1812.00437 v1 · 2018-12-02 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MTGE7YFUSFMDPJNSAEL7IMHB5R}

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	2026-05-17T23:59:21.348404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64cc4fe0b4915837a5b20117f430e1ec69613d2b2c3f76ba734ae31a676c67a6

Aliases

arxiv: 1812.00437 · arxiv_version: 1812.00437v1 · doi: 10.48550/arxiv.1812.00437 · pith_short_12: MTGE7YFUSFMD · pith_short_16: MTGE7YFUSFMDPJNS · pith_short_8: MTGE7YFU

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/MTGE7YFUSFMDPJNSAEL7IMHB5R \
  | 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: 64cc4fe0b4915837a5b20117f430e1ec69613d2b2c3f76ba734ae31a676c67a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b90475428af9ef7f7768f8a0d4635be6a51d88e8977d6809f06e9cb5d7af7c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-02T17:57:52Z",
    "title_canon_sha256": "d1b55cd8326d554bfb932bef489d21117eb56a89c8c2428401891c31adf0de84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.00437",
    "kind": "arxiv",
    "version": 1
  }
}