Pith Number

pith:VRLC57MQ

pith:2019:VRLC57MQG3MG5M5D2TTD22UCQU

not attested not anchored not stored refs pending

A remark on Pinney's equation

Philip Korman

arxiv:1902.02739 v1 · 2019-02-07 · math.AP · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VRLC57MQG3MG5M5D2TTD22UCQU}

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	2026-05-17T23:54:32.337442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac562efd9036d86eb3a3d4e63d6a82852f8040a6f4e1529018f9fbc12890e288

Aliases

arxiv: 1902.02739 · arxiv_version: 1902.02739v1 · doi: 10.48550/arxiv.1902.02739 · pith_short_12: VRLC57MQG3MG · pith_short_16: VRLC57MQG3MG5M5D · pith_short_8: VRLC57MQ

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/VRLC57MQG3MG5M5D2TTD22UCQU \
  | 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: ac562efd9036d86eb3a3d4e63d6a82852f8040a6f4e1529018f9fbc12890e288

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b1eb5fa0500e5aa77aca89c6d87818f38743c634cc2b5473b814b3feb9515b7",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-07T17:29:08Z",
    "title_canon_sha256": "3f3278e1e54e7de7cdb2b2dcb4777e7b8c0606af70d035590541a3b6b7d0fbc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02739",
    "kind": "arxiv",
    "version": 1
  }
}