Pith Number

pith:XF3QNVFH

pith:2012:XF3QNVFHMM6CVHMJXFPIV5C3RV

not attested not anchored not stored refs pending

Delta-Decidability over the Reals

Edmund Clarke, Jeremy Avigad, Sicun Gao

arxiv:1204.6671 v1 · 2012-04-30 · 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{XF3QNVFHMM6CVHMJXFPIV5C3RV}

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	2026-05-18T03:56:44.162334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b97706d4a7633c2a9d89b95e8af45b8d6960a668d4d9e5c746122156594f70f5

Aliases

arxiv: 1204.6671 · arxiv_version: 1204.6671v1 · doi: 10.48550/arxiv.1204.6671 · pith_short_12: XF3QNVFHMM6C · pith_short_16: XF3QNVFHMM6CVHMJ · pith_short_8: XF3QNVFH

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/XF3QNVFHMM6CVHMJXFPIV5C3RV \
  | 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: b97706d4a7633c2a9d89b95e8af45b8d6960a668d4d9e5c746122156594f70f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f7a7e9ab89f24ff5ac90d6e7f08da644aaa342513f9218e8b524a5908b4f87a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-04-30T15:35:10Z",
    "title_canon_sha256": "dc59f4866700fc3f656152dffe6f6ca520e30c404d6c39a460c4356b46ea6ec1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6671",
    "kind": "arxiv",
    "version": 1
  }
}