Pith Number

pith:2SL7SJZB

pith:2012:2SL7SJZB2VBD4X665EYEZOQZZQ

not attested not anchored not stored refs pending

Interpolation by polynomials with symmetries on the imaginary axis

Daniel Alpay, Izchak Lewkowicz

arxiv:1208.1869 v1 · 2012-08-09 · math.CV · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SL7SJZB2VBD4X665EYEZOQZZQ}

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	2026-05-18T03:49:09.792672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d497f92721d5423e5fdee9304cba19cc1e7e638844ab036d6ac141eb5195ae5b

Aliases

arxiv: 1208.1869 · arxiv_version: 1208.1869v1 · doi: 10.48550/arxiv.1208.1869 · pith_short_12: 2SL7SJZB2VBD · pith_short_16: 2SL7SJZB2VBD4X66 · pith_short_8: 2SL7SJZB

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/2SL7SJZB2VBD4X665EYEZOQZZQ \
  | 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: d497f92721d5423e5fdee9304cba19cc1e7e638844ab036d6ac141eb5195ae5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42564b9acb3c41f3bda63e49c3c449ceaff4e075126d1aadd65d43c8a5995b60",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2012-08-09T10:42:43Z",
    "title_canon_sha256": "a436491e0f94763e4616f44cde320de9d99631fd9151eeb67403b57a5e1cad08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1869",
    "kind": "arxiv",
    "version": 1
  }
}