Pith Number

pith:X2E7L77F

pith:2015:X2E7L77FCCGOO2SH667JU4AKER

not attested not anchored not stored refs pending

Interpolation Formulas With Derivatives in De Branges Spaces II

Felipe Gon\c{c}alves, Friedrich Littmann

arxiv:1510.08383 v2 · 2015-10-28 · math.CV · 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{X2E7L77FCCGOO2SH667JU4AKER}

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	2026-05-18T00:44:46.125561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be89f5ffe5108ce76a47f7be9a700a2475e1c9b0bba8c18fecd344ace2a31010

Aliases

arxiv: 1510.08383 · arxiv_version: 1510.08383v2 · doi: 10.48550/arxiv.1510.08383 · pith_short_12: X2E7L77FCCGO · pith_short_16: X2E7L77FCCGOO2SH · pith_short_8: X2E7L77F

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/X2E7L77FCCGOO2SH667JU4AKER \
  | 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: be89f5ffe5108ce76a47f7be9a700a2475e1c9b0bba8c18fecd344ace2a31010

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fd1c69449120ec73faf0b932f61c3ec88a499466e424c05067f89f963efe988",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2015-10-28T17:21:05Z",
    "title_canon_sha256": "2204b9f33a90342ec4d21e4f8ef2b61e4cbc0f5474822a74a7ba256da31dc53c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08383",
    "kind": "arxiv",
    "version": 2
  }
}