Pith Number

pith:76EDYNAX

pith:2021:76EDYNAXEYVOQOLXVKGXBAPZCO

not attested not anchored not stored refs pending

A Curiously Effective Backtracking Strategy for Connection Tableaux

Michael F\"arber

arxiv:2106.13722 v2 · 2021-06-25 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{76EDYNAXEYVOQOLXVKGXBAPZCO}

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	2026-07-05T07:33:46.019895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff883c3417262ae83977aa8d7081f9139d469fefce879ddb7682e16c3c44252f

Aliases

arxiv: 2106.13722 · arxiv_version: 2106.13722v2 · doi: 10.48550/arxiv.2106.13722 · pith_short_12: 76EDYNAXEYVO · pith_short_16: 76EDYNAXEYVOQOLX · pith_short_8: 76EDYNAX

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/76EDYNAXEYVOQOLXVKGXBAPZCO \
  | 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: ff883c3417262ae83977aa8d7081f9139d469fefce879ddb7682e16c3c44252f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58f53962485b987db7fd62499cf41c67210341b757899e29296a5df16a868e0e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-06-25T16:01:02Z",
    "title_canon_sha256": "5b07d5f2cd370066f1396fbe4a3c476f29204b34e5b134d7f208a2b0d43db0cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13722",
    "kind": "arxiv",
    "version": 2
  }
}