Pith Number

pith:SBIXWAWJ

pith:2018:SBIXWAWJML5GY343EAQM3YJHUO

not attested not anchored not stored refs pending

A new estimate for a quantity involving the Chebyshev polynomials of the first kind

Chen-Song Zhang, Xuefeng Xu

arxiv:1804.02935 v2 · 2018-04-09 · 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{SBIXWAWJML5GY343EAQM3YJHUO}

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	2026-05-17T23:51:05.937923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90517b02c962fa6c6f9b2020cde127a3b8d04d8453edf6930ce9da6ad61e20f2

Aliases

arxiv: 1804.02935 · arxiv_version: 1804.02935v2 · doi: 10.48550/arxiv.1804.02935 · pith_short_12: SBIXWAWJML5G · pith_short_16: SBIXWAWJML5GY343 · pith_short_8: SBIXWAWJ

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/SBIXWAWJML5GY343EAQM3YJHUO \
  | 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: 90517b02c962fa6c6f9b2020cde127a3b8d04d8453edf6930ce9da6ad61e20f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f7b68e1c95ead73e687bf04085d8756e43484408400bcc756b3f617a3aa949a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-09T12:17:58Z",
    "title_canon_sha256": "22f32bc13b38bb42662cf25e1439ddd8a5f274655bb20a016589c7c08625b9a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02935",
    "kind": "arxiv",
    "version": 2
  }
}