Pith Number

pith:B2Q5GXHR

pith:2016:B2Q5GXHRAZ7ZEN7OYRQXRBOJ2E

not attested not anchored not stored refs pending

Algebraic methods in approximation theory

Hal Schenck

arxiv:1610.05181 v1 · 2016-10-17 · math.NA · math.AC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B2Q5GXHRAZ7ZEN7OYRQXRBOJ2E}

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	2026-05-18T01:02:05.914840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ea1d35cf1067f9237eec4617885c9d13e47438e327a0036c303d3693e26613c

Aliases

arxiv: 1610.05181 · arxiv_version: 1610.05181v1 · doi: 10.48550/arxiv.1610.05181 · pith_short_12: B2Q5GXHRAZ7Z · pith_short_16: B2Q5GXHRAZ7ZEN7O · pith_short_8: B2Q5GXHR

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/B2Q5GXHRAZ7ZEN7OYRQXRBOJ2E \
  | 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: 0ea1d35cf1067f9237eec4617885c9d13e47438e327a0036c303d3693e26613c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1d5e49602def881fbe6cfe684eb8bf6f2ec4c6f0a1dfc1051a279f39d674d20",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-10-17T16:03:16Z",
    "title_canon_sha256": "73ae3b230163187b4b2e6f60c895b680ac5bd37c8c6fdb5d5f73324452ac3384"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.05181",
    "kind": "arxiv",
    "version": 1
  }
}