Pith Number

pith:2RUOTBVH

pith:2012:2RUOTBVHNNCGP43RTRUKEXWV46

not attested not anchored not stored refs pending

Approximation of fractional integrals by means of derivatives

Delfim F. M. Torres, Ricardo Almeida, Shakoor Pooseh

arxiv:1201.5224 v1 · 2012-01-25 · math.CA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2RUOTBVHNNCGP43RTRUKEXWV46}

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	2026-05-18T03:42:22.467473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d468e986a76b4467f3719c68a25ed5e7b4061f00ff71d7fc5cf8e8f262f7a1d2

Aliases

arxiv: 1201.5224 · arxiv_version: 1201.5224v1 · doi: 10.48550/arxiv.1201.5224 · pith_short_12: 2RUOTBVHNNCG · pith_short_16: 2RUOTBVHNNCGP43R · pith_short_8: 2RUOTBVH

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/2RUOTBVHNNCGP43RTRUKEXWV46 \
  | 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: d468e986a76b4467f3719c68a25ed5e7b4061f00ff71d7fc5cf8e8f262f7a1d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfeb9092cde72cd3d85149353031262f9fa1876b98a61d4db5f90ce35387747e",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-01-25T10:06:39Z",
    "title_canon_sha256": "fbcb7782d78ef81e8589aa131017d01e825aebf1091e48f3eb46599bc97a12e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5224",
    "kind": "arxiv",
    "version": 1
  }
}