Pith Number

pith:RYLQP5CQ

pith:2019:RYLQP5CQJMDPA5CUHD23U2UQ7P

not attested not anchored not stored refs pending

Many solutions to the $S$-unit equation $a+1=c$

Junsoo Ha, Kannan Soundararajan

arxiv:1902.07397 v1 · 2019-02-20 · 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{RYLQP5CQJMDPA5CUHD23U2UQ7P}

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	2026-05-17T23:53:08.074691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e1707f4504b06f0745438f5ba6a90fbe28538c014a0727a82748713c9693e4a

Aliases

arxiv: 1902.07397 · arxiv_version: 1902.07397v1 · doi: 10.48550/arxiv.1902.07397 · pith_short_12: RYLQP5CQJMDP · pith_short_16: RYLQP5CQJMDPA5CU · pith_short_8: RYLQP5CQ

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/RYLQP5CQJMDPA5CUHD23U2UQ7P \
  | 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: 8e1707f4504b06f0745438f5ba6a90fbe28538c014a0727a82748713c9693e4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e631386d3fd903637c7d07a9d41cfd065c4c2f586aba7dfa8eaa87ce15281064",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-02-20T04:23:07Z",
    "title_canon_sha256": "045f7fed8a9ac499ffc7cb254e40d9ec32638e93fd4f312d926cce49f651e331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07397",
    "kind": "arxiv",
    "version": 1
  }
}