Pith Number

pith:6VTVVX6R

pith:2018:6VTVVX6RPWWUVD2M5ZP4ZQF5QY

not attested not anchored not stored refs pending

Schur functions for approximation problems

Julien Ugon, Nadezda Sukhorukova

arxiv:1805.11758 v1 · 2018-05-30 · 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{6VTVVX6RPWWUVD2M5ZP4ZQF5QY}

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	2026-05-18T00:14:36.619883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5675adfd17dad4a8f4cee5fccc0bd86040424f16f77bfc8df8b3f27f481b4fe

Aliases

arxiv: 1805.11758 · arxiv_version: 1805.11758v1 · doi: 10.48550/arxiv.1805.11758 · pith_short_12: 6VTVVX6RPWWU · pith_short_16: 6VTVVX6RPWWUVD2M · pith_short_8: 6VTVVX6R

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/6VTVVX6RPWWUVD2M5ZP4ZQF5QY \
  | 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: f5675adfd17dad4a8f4cee5fccc0bd86040424f16f77bfc8df8b3f27f481b4fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "460bfd12e378ad4989a7d1c7156bafac0586270dc6c7ec5f2ca55cbe0b6e9b72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-30T00:32:45Z",
    "title_canon_sha256": "663d0b6038d116c770c616d1982080b2f23bd2255067a252c60b91948a9bd489"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.11758",
    "kind": "arxiv",
    "version": 1
  }
}