Pith Number

pith:6I3YG4RE

pith:2018:6I3YG4REHNSMGSCXNVJMU323DI

not attested not anchored not stored refs pending

Solving isomorphism problems about 2-designs from disjoint difference families

Alexander Pott, Christian Kaspers

arxiv:1807.02055 v1 · 2018-07-05 · 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{6I3YG4REHNSMGSCXNVJMU323DI}

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	2026-05-17T23:47:52.790744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2378372243b64c348576d52ca6f5b1a39ae574400861d34ec1091f65870667c

Aliases

arxiv: 1807.02055 · arxiv_version: 1807.02055v1 · doi: 10.48550/arxiv.1807.02055 · pith_short_12: 6I3YG4REHNSM · pith_short_16: 6I3YG4REHNSMGSCX · pith_short_8: 6I3YG4RE

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/6I3YG4REHNSMGSCXNVJMU323DI \
  | 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: f2378372243b64c348576d52ca6f5b1a39ae574400861d34ec1091f65870667c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc35084a39aceab5ca4fc38d2f628145e7f7cd32fb31f107d6e2501b49f48578",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-05T15:31:12Z",
    "title_canon_sha256": "a4801c41cdba6f454d3a16d4a587515f3cad5dcceb06e20dbc504be3ac0539ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02055",
    "kind": "arxiv",
    "version": 1
  }
}