Pith Number

pith:RFH7YVUF

pith:2018:RFH7YVUFZZ5DE7WQVYMTGWWNI6

not attested not anchored not stored refs pending

No entire inner functions

Alberto Cobos, Daniel Seco

arxiv:1810.00215 v3 · 2018-09-29 · math.CV · math.CA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RFH7YVUFZZ5DE7WQVYMTGWWNI6}

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	2026-05-18T00:01:57.585891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

894ffc5685ce7a327ed0ae19335acd47b01c6cf36302872f0403b84268a4f55d

Aliases

arxiv: 1810.00215 · arxiv_version: 1810.00215v3 · doi: 10.48550/arxiv.1810.00215 · pith_short_12: RFH7YVUFZZ5D · pith_short_16: RFH7YVUFZZ5DE7WQ · pith_short_8: RFH7YVUF

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/RFH7YVUFZZ5DE7WQVYMTGWWNI6 \
  | 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: 894ffc5685ce7a327ed0ae19335acd47b01c6cf36302872f0403b84268a4f55d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "605696cd88a3e8e7926985e5ced296ec8a5ee59c2cc6f3723e1f11549cfd0d2a",
    "cross_cats_sorted": [
      "math.CA",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-09-29T14:21:01Z",
    "title_canon_sha256": "2ae85b42d229c83077db1858e9c979808b6e0485e30e99f18cc9f177c38d4da5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00215",
    "kind": "arxiv",
    "version": 3
  }
}