Pith Number

pith:4V6AQY6I

pith:2017:4V6AQY6IOKCCFS7V6S4PK46SAJ

not attested not anchored not stored refs pending

Approximation theorems connected with differential-difference operator

Chokri Abdelkefi, Safa Chabchoub

arxiv:1704.06997 v1 · 2017-04-23 · 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{4V6AQY6IOKCCFS7V6S4PK46SAJ}

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	2026-05-18T00:45:55.087569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e57c0863c8728422cbf5f4b8f573d2026948009423ce19ceef5dc438be2164f0

Aliases

arxiv: 1704.06997 · arxiv_version: 1704.06997v1 · doi: 10.48550/arxiv.1704.06997 · pith_short_12: 4V6AQY6IOKCC · pith_short_16: 4V6AQY6IOKCCFS7V · pith_short_8: 4V6AQY6I

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/4V6AQY6IOKCCFS7V6S4PK46SAJ \
  | 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: e57c0863c8728422cbf5f4b8f573d2026948009423ce19ceef5dc438be2164f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88bb1aa17d12e3176d8ab7ae5393f56062009dc37fa5b1f503ede84ffabd6625",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-04-23T22:56:53Z",
    "title_canon_sha256": "f14547f393fa8a4aa869458c04b07b50774414616265a15aee5a928b65d5a148"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06997",
    "kind": "arxiv",
    "version": 1
  }
}