Pith Number

pith:B6XLRHZ6

pith:2020:B6XLRHZ6GGPX4XQMSVXOV46H2O

not attested not anchored not stored refs pending

Tatamibari is NP-complete

Aviv Adler, Erik D. Demaine, Jayson Lynch, Jeffrey Bosboom, Martin L. Demaine, Quanquan C. Liu

arxiv:2003.08331 v2 · 2020-03-18 · cs.CC · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B6XLRHZ6GGPX4XQMSVXOV46H2O}

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	2026-07-05T01:01:24.013403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0faeb89f3e319f7e5e0c956eeaf3c7d3ba892e6b0b0e3a332cd3a1c7e6148bb1

Aliases

arxiv: 2003.08331 · arxiv_version: 2003.08331v2 · doi: 10.48550/arxiv.2003.08331 · pith_short_12: B6XLRHZ6GGPX · pith_short_16: B6XLRHZ6GGPX4XQM · pith_short_8: B6XLRHZ6

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/B6XLRHZ6GGPX4XQMSVXOV46H2O \
  | 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: 0faeb89f3e319f7e5e0c956eeaf3c7d3ba892e6b0b0e3a332cd3a1c7e6148bb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a4c8b42115cae0fce2d48e82dd74b4eeff3af3366bbffaa68d59e6a1b124d7d",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2020-03-18T16:54:28Z",
    "title_canon_sha256": "d361a1dd54229f626913c882a0a5c31dbe9165ae4767b2135ad5914c32274222"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.08331",
    "kind": "arxiv",
    "version": 2
  }
}