Pith Number

pith:LZW4O2R2

pith:2017:LZW4O2R2M7D7ULNDGWRCYHZA24

not attested not anchored not stored refs pending

Binary Matrix Guessing Problem

\c{C}a\u{g}r{\i} Latifo\u{g}lu

arxiv:1701.06167 v2 · 2017-01-22 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LZW4O2R2M7D7ULNDGWRCYHZA24}

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	2026-05-18T00:03:19.896608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e6dc76a3a67c7fa2da335a22c1f20d703ca49703795eba0edda8d3172d3bc2e

Aliases

arxiv: 1701.06167 · arxiv_version: 1701.06167v2 · doi: 10.48550/arxiv.1701.06167 · pith_short_12: LZW4O2R2M7D7 · pith_short_16: LZW4O2R2M7D7ULND · pith_short_8: LZW4O2R2

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/LZW4O2R2M7D7ULNDGWRCYHZA24 \
  | 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: 5e6dc76a3a67c7fa2da335a22c1f20d703ca49703795eba0edda8d3172d3bc2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7912cbb74943e670ce7224c07875637c442af571f91489148fbb2b45ce1acebd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2017-01-22T14:19:25Z",
    "title_canon_sha256": "d3b26edab3239b61740ab28e75b34d7ece328453cd5e0ed76ffcd65e21076def"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06167",
    "kind": "arxiv",
    "version": 2
  }
}