Pith Number

pith:7EQ5TSB2

pith:2020:7EQ5TSB2PZ7L5ZVVH7AWZM3FCT

not attested not anchored not stored refs pending

Perturbed interpolation formulae and applications

Jo\~ao P. G. Ramos, Mateus Sousa

arxiv:2005.10337 v1 · 2020-05-20 · math.CA · math.FA · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EQ5TSB2PZ7L5ZVVH7AWZM3FCT}

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	2026-07-05T07:25:35.576353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f921d9c83a7e7ebee6b53fc16cb36514d1ee56fd04cd1fc7e92193ca33a56b21

Aliases

arxiv: 2005.10337 · arxiv_version: 2005.10337v1 · doi: 10.48550/arxiv.2005.10337 · pith_short_12: 7EQ5TSB2PZ7L · pith_short_16: 7EQ5TSB2PZ7L5ZVV · pith_short_8: 7EQ5TSB2

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/7EQ5TSB2PZ7L5ZVVH7AWZM3FCT \
  | 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: f921d9c83a7e7ebee6b53fc16cb36514d1ee56fd04cd1fc7e92193ca33a56b21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fef244d0279ac52c9c84a0596eb289384a21313da07b8e6d2ec938f446d058c",
    "cross_cats_sorted": [
      "math.FA",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2020-05-20T20:00:05Z",
    "title_canon_sha256": "fb25de70234e0e44b0c58226f15ed47895adb97b012cc1a1d6ca18270ab15e5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.10337",
    "kind": "arxiv",
    "version": 1
  }
}