Pith Number

pith:E4QKJYQM

pith:2014:E4QKJYQMKMUXTYPBVOAP36Z52J

not attested not anchored not stored refs pending

Hyperbolic plane geometry revisited

\'Akos G.Horv\'ath

arxiv:1405.1068 v2 · 2014-05-05 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4QKJYQMKMUXTYPBVOAP36Z52J}

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	2026-05-18T02:39:25.459929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2720a4e20c532979e1e1ab80fdfb3dd27b09a325d87b305d769ae5dff4036198

Aliases

arxiv: 1405.1068 · arxiv_version: 1405.1068v2 · doi: 10.48550/arxiv.1405.1068 · pith_short_12: E4QKJYQMKMUX · pith_short_16: E4QKJYQMKMUXTYPB · pith_short_8: E4QKJYQM

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/E4QKJYQMKMUXTYPBVOAP36Z52J \
  | 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: 2720a4e20c532979e1e1ab80fdfb3dd27b09a325d87b305d769ae5dff4036198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e93bac7f8a95f40bdfbfd59270f929286afe0df46a23931ef72ea8dc2a1a13f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-05-05T20:46:09Z",
    "title_canon_sha256": "a2f227fd2c1414de5b2ffdc66b8ed655dfd8d831b9f65bd48e4954917fa0608d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1068",
    "kind": "arxiv",
    "version": 2
  }
}