Pith Number

pith:FIV2KNTA

pith:2011:FIV2KNTAFZWBGCW4FHNNF5BSO2

not attested not anchored not stored refs pending

An interpolation problem for functions with values in a commutative ring

Daniel Alpay, Haim Attia

arxiv:1104.1603 v1 · 2011-04-08 · 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{FIV2KNTAFZWBGCW4FHNNF5BSO2}

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	2026-05-18T04:24:44.782048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a2ba536602e6c130adc29dad2f43276bc6c861d43cf849ee043374756ca5971

Aliases

arxiv: 1104.1603 · arxiv_version: 1104.1603v1 · doi: 10.48550/arxiv.1104.1603 · pith_short_12: FIV2KNTAFZWB · pith_short_16: FIV2KNTAFZWBGCW4 · pith_short_8: FIV2KNTA

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/FIV2KNTAFZWBGCW4FHNNF5BSO2 \
  | 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: 2a2ba536602e6c130adc29dad2f43276bc6c861d43cf849ee043374756ca5971

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a03d0e6d917047200e22a8c2461d534aa9c8d0ef8feca97097ebcd521f8e5256",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2011-04-08T16:11:33Z",
    "title_canon_sha256": "958a398b664400c56cfdac2bd08a8ef0aaabdfffb309609feef55872b1a57426"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1603",
    "kind": "arxiv",
    "version": 1
  }
}