Pith Number

pith:YX5TLWZL

pith:2021:YX5TLWZLOXOJBU3M5OJO7YTG55

not attested not anchored not stored refs pending

A Flexible Proof Format for SAT Solver-Elaborator Communication

Marijn J.H. Heule, Mario Carneiro, Seulkee Baek

arxiv:2109.09665 v3 · 2021-09-20 · 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{YX5TLWZLOXOJBU3M5OJO7YTG55}

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	2026-07-05T06:23:34.194815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5fb35db2b75dc90d36ceb92efe266ef5c574e17fe77a8cec1fa0ad971c4c10a

Aliases

arxiv: 2109.09665 · arxiv_version: 2109.09665v3 · doi: 10.48550/arxiv.2109.09665 · pith_short_12: YX5TLWZLOXOJ · pith_short_16: YX5TLWZLOXOJBU3M · pith_short_8: YX5TLWZL

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/YX5TLWZLOXOJBU3M5OJO7YTG55 \
  | 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: c5fb35db2b75dc90d36ceb92efe266ef5c574e17fe77a8cec1fa0ad971c4c10a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "772f54a1e023a92198cc53bcd876aec079b20d70769efd8376c235f770aa5eef",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-09-20T16:31:43Z",
    "title_canon_sha256": "0f3fc5fdf8aeba8777d04150905c1dd21594be5b015599809b7ed7a79c3a239a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.09665",
    "kind": "arxiv",
    "version": 3
  }
}