Pith Number

pith:AVAYPVYG

pith:2004:AVAYPVYGIABVEDDSGR7PFT4VDU

not attested not anchored not stored refs pending

Polynomial Interpolation on the Unit Sphere II

Noemi Lain Fernandez, Wolfgang zu Castell, Yuan Xu

arxiv:math/0407448 v1 · 2004-07-27 · math.NA · cs.NA · 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{AVAYPVYGIABVEDDSGR7PFT4VDU}

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	2026-06-03T22:06:15.482098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

054187d7064003520c72347ef2cf951d32288938d06c7cea010e9700be211e6b

Aliases

arxiv: math/0407448 · arxiv_version: math/0407448v1 · doi: 10.48550/arxiv.math/0407448 · pith_short_12: AVAYPVYGIABV · pith_short_16: AVAYPVYGIABVEDDS · pith_short_8: AVAYPVYG

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/AVAYPVYGIABVEDDSGR7PFT4VDU \
  | 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: 054187d7064003520c72347ef2cf951d32288938d06c7cea010e9700be211e6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cf153af2029714b01acda38bd904940bbd6ba36b1dc53441906a7d0a289ce77",
    "cross_cats_sorted": [
      "cs.NA",
      "math.CA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2004-07-27T00:13:26Z",
    "title_canon_sha256": "6a50e548967f433b0d1499403dbb1e4a422b1528fd24bb7d4ca365ec943646b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0407448",
    "kind": "arxiv",
    "version": 1
  }
}