Pith Number

pith:QUEL6PML

pith:2018:QUEL6PMLH4L7XTVM5B24YCQQ6A

not attested not anchored not stored refs pending

Arithmetic Progressions with Restricted Digits

Aled Walker, Alexander Walker

arxiv:1809.02430 v1 · 2018-09-07 · math.NT · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QUEL6PMLH4L7XTVM5B24YCQQ6A}

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	2026-05-18T00:06:17.143259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8508bf3d8b3f17fbceace875cc0a10f00a0f90975bed65d2a1cc8cd704a8fd23

Aliases

arxiv: 1809.02430 · arxiv_version: 1809.02430v1 · doi: 10.48550/arxiv.1809.02430 · pith_short_12: QUEL6PMLH4L7 · pith_short_16: QUEL6PMLH4L7XTVM · pith_short_8: QUEL6PML

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/QUEL6PMLH4L7XTVM5B24YCQQ6A \
  | 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: 8508bf3d8b3f17fbceace875cc0a10f00a0f90975bed65d2a1cc8cd704a8fd23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5774c440dad2fc7941f90da70c6e6fcfe21e5f322c3f38ae93589e577684bcdd",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2018-09-07T12:14:17Z",
    "title_canon_sha256": "491aeb9b25b0a93b8b13784da7310b2cc42f61a97fb26a1cd11fad25dc4b1933"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02430",
    "kind": "arxiv",
    "version": 1
  }
}