Pith Number

pith:DWVMB5O2

pith:2015:DWVMB5O2NTY6CYEMBD7LTMVU66

not attested not anchored not stored refs pending

Well-Conditioned Fractional Collocation Methods Using Fractional Birkhoff Interpolation Basis

Can Huang, Li-Lian Wang, Yujian Jiao

arxiv:1503.07632 v2 · 2015-03-26 · 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{DWVMB5O2NTY6CYEMBD7LTMVU66}

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	2026-05-18T02:20:12.083632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1daac0f5da6cf1e1608c08feb9b2b4f780d206fcb241b269f542f2dc1cfd3c52

Aliases

arxiv: 1503.07632 · arxiv_version: 1503.07632v2 · doi: 10.48550/arxiv.1503.07632 · pith_short_12: DWVMB5O2NTY6 · pith_short_16: DWVMB5O2NTY6CYEM · pith_short_8: DWVMB5O2

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/DWVMB5O2NTY6CYEMBD7LTMVU66 \
  | 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: 1daac0f5da6cf1e1608c08feb9b2b4f780d206fcb241b269f542f2dc1cfd3c52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cb2e31044092ae3f85d3a6bd45f296e074e4059c586613fd08c152281612c78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-03-26T06:23:50Z",
    "title_canon_sha256": "aede10b9ffae61f2a133036995ef0f3d5c2b1aea8ce7802422f6332a3940efb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07632",
    "kind": "arxiv",
    "version": 2
  }
}