Pith Number

pith:2PLBW5DU

pith:2018:2PLBW5DUZHVQB34HYGRUE2PNNJ

not attested not anchored not stored refs pending

Chebyshev Interpolation for Function in 1D

Tianyu Sun

arxiv:1810.04282 v1 · 2018-09-24 · 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{2PLBW5DUZHVQB34HYGRUE2PNNJ}

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	2026-05-18T00:03:40.571828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3d61b7474c9eb00ef87c1a34269ed6a790c59cefc9b5c23f5f61097a24ab74f

Aliases

arxiv: 1810.04282 · arxiv_version: 1810.04282v1 · doi: 10.48550/arxiv.1810.04282 · pith_short_12: 2PLBW5DUZHVQ · pith_short_16: 2PLBW5DUZHVQB34H · pith_short_8: 2PLBW5DU

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/2PLBW5DUZHVQB34HYGRUE2PNNJ \
  | 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: d3d61b7474c9eb00ef87c1a34269ed6a790c59cefc9b5c23f5f61097a24ab74f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ed8eee0450a48eb7f6c955f53c7aea0d1821a866d536991ba428b23f621c64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-09-24T19:21:10Z",
    "title_canon_sha256": "172eb59fe880070c3740d8bd87af80893391efaee4f7e63991e7a814fbf42b2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04282",
    "kind": "arxiv",
    "version": 1
  }
}