Pith Number

pith:RR7Q5TQN

pith:2018:RR7Q5TQN6K3XM6HQOPNUMETCWQ

not attested not anchored not stored refs pending

Proof systems: from nestings to sequents and back

Elaine Pimentel

arxiv:1802.04704 v2 · 2018-02-13 · 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{RR7Q5TQN6K3XM6HQOPNUMETCWQ}

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	2026-05-18T00:23:22.584789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c7f0ece0df2b77678f073db461262b424cc3bebecda1d818fea1b84ada1cbdd

Aliases

arxiv: 1802.04704 · arxiv_version: 1802.04704v2 · doi: 10.48550/arxiv.1802.04704 · pith_short_12: RR7Q5TQN6K3X · pith_short_16: RR7Q5TQN6K3XM6HQ · pith_short_8: RR7Q5TQN

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/RR7Q5TQN6K3XM6HQOPNUMETCWQ \
  | 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: 8c7f0ece0df2b77678f073db461262b424cc3bebecda1d818fea1b84ada1cbdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "162b176fc498311cddb6dab9d0157ff46e8e02d0be9e7a7f9f7c2cc4ddf3cb4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-02-13T16:17:38Z",
    "title_canon_sha256": "10f62a132d41d5bbfbc493ad624db144f6279fc280a523ea313e9282536b169c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04704",
    "kind": "arxiv",
    "version": 2
  }
}