Pith Number

pith:REYMHY6X

pith:2012:REYMHY6XH4PXJEF54LRADPS3IR

not attested not anchored not stored refs pending

Approximation systems

Tom H. Koornwinder, Victor A. Pessers

arxiv:1205.6370 v3 · 2012-05-29 · math.CA · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{REYMHY6XH4PXJEF54LRADPS3IR}

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	2026-05-18T00:32:31.805917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8930c3e3d73f1f7490bde2e201be5b447fdffea635d5e56da955084064443c12

Aliases

arxiv: 1205.6370 · arxiv_version: 1205.6370v3 · doi: 10.48550/arxiv.1205.6370 · pith_short_12: REYMHY6XH4PX · pith_short_16: REYMHY6XH4PXJEF5 · pith_short_8: REYMHY6X

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/REYMHY6XH4PXJEF54LRADPS3IR \
  | 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: 8930c3e3d73f1f7490bde2e201be5b447fdffea635d5e56da955084064443c12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c53f51589a64b5c17d62c883424a0933791d2300fb0d1860c5610b1ce6e4fc93",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-05-29T14:12:14Z",
    "title_canon_sha256": "26a95c6ee02a327a38cf6a677c350da627bdbd88aa8cf925760d1e5eb86c8dbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.6370",
    "kind": "arxiv",
    "version": 3
  }
}