Pith Number

pith:GD34F2O6

pith:2018:GD34F2O6ESA6UAXGIZTFVYMQZ5

not attested not anchored not stored refs pending

Finding Optimal Solutions to Token Swapping by Conflict-based Search and Reduction to SAT

Pavel Surynek

arxiv:1806.09487 v1 · 2018-06-25 · 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{GD34F2O6ESA6UAXGIZTFVYMQZ5}

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	2026-05-18T00:12:27.126262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30f7c2e9de2481ea02e646665ae190cf707d984af20a286ded7538525f99adfc

Aliases

arxiv: 1806.09487 · arxiv_version: 1806.09487v1 · doi: 10.48550/arxiv.1806.09487 · pith_short_12: GD34F2O6ESA6 · pith_short_16: GD34F2O6ESA6UAXG · pith_short_8: GD34F2O6

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/GD34F2O6ESA6UAXGIZTFVYMQZ5 \
  | 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: 30f7c2e9de2481ea02e646665ae190cf707d984af20a286ded7538525f99adfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4491647966c72b6a1fde78818686ee27636bc3642f4f668ffbe5e2efe18e356",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-06-25T14:28:09Z",
    "title_canon_sha256": "d6868379791eb614f530b8e4b62e53405b60f9f52ff90473176168727e209d32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09487",
    "kind": "arxiv",
    "version": 1
  }
}