Pith Number

pith:LLPR5WV6

pith:2019:LLPR5WV6EOTU2XIOPGQDRLTOQO

not attested not anchored not stored refs pending

Packing without some pieces

Raphael Yuster

arxiv:1901.09185 v1 · 2019-01-26 · math.CO

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-17T23:55:26.668393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5adf1edabe23a74d5d0e79a038ae6e83a6d2bf2931cb33f761f61b9f56ed9a5c

Aliases

arxiv: 1901.09185 · arxiv_version: 1901.09185v1 · doi: 10.48550/arxiv.1901.09185

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/LLPR5WV6EOTU2XIOPGQDRLTOQO \
  | 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: 5adf1edabe23a74d5d0e79a038ae6e83a6d2bf2931cb33f761f61b9f56ed9a5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b59e4d6975e0044dc56a447a082c27041086550d2ae4da7e1208033e329c78c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-01-26T09:44:01Z",
    "title_canon_sha256": "dff5a1e6433b3234c53185f031b9167ad97a70ec315d2bf1193ded107c387125"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09185",
    "kind": "arxiv",
    "version": 1
  }
}