Pith Number

pith:5V2PALNS

pith:2015:5V2PALNSNRWR4XULVZWP26J3S6

not attested not anchored not stored refs pending

A Note on Always Decidable Propositional Forms

Merlin Carl

arxiv:1502.02545 v1 · 2015-02-09 · math.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{5V2PALNSNRWR4XULVZWP26J3S6}

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	2026-05-18T02:27:41.949855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed74f02db26c6d1e5e8bae6cfd793b97bc9e5a7af57e4740162340e11e63925a

Aliases

arxiv: 1502.02545 · arxiv_version: 1502.02545v1 · doi: 10.48550/arxiv.1502.02545 · pith_short_12: 5V2PALNSNRWR · pith_short_16: 5V2PALNSNRWR4XUL · pith_short_8: 5V2PALNS

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/5V2PALNSNRWR4XULVZWP26J3S6 \
  | 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: ed74f02db26c6d1e5e8bae6cfd793b97bc9e5a7af57e4740162340e11e63925a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8a3fc1be13944cbe29aa0a08f918806e15acb95f03740fe950dbd065659073a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-02-09T16:25:56Z",
    "title_canon_sha256": "dfbb6e316935820c71af2a2e8ca5c065188556f1edae1f19f62a6ee9d84c0aa0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02545",
    "kind": "arxiv",
    "version": 1
  }
}