Pith Number

pith:CX4ORYVQ

pith:2014:CX4ORYVQPMXIABSAVM754KS6TQ

not attested not anchored not stored refs pending

Proving termination with transition invariants of height omega

Paulo Oliva, Silvia Steila, Stefano Berardi

arxiv:1407.4692 v1 · 2014-07-17 · 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{CX4ORYVQPMXIABSAVM754KS6TQ}

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	2026-05-18T02:47:23.555125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15f8e8e2b07b2e800640ab3fde2a5e9c1adb8092a6f2f6f02ace528fc1dd1328

Aliases

arxiv: 1407.4692 · arxiv_version: 1407.4692v1 · doi: 10.48550/arxiv.1407.4692 · pith_short_12: CX4ORYVQPMXI · pith_short_16: CX4ORYVQPMXIABSA · pith_short_8: CX4ORYVQ

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/CX4ORYVQPMXIABSAVM754KS6TQ \
  | 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: 15f8e8e2b07b2e800640ab3fde2a5e9c1adb8092a6f2f6f02ace528fc1dd1328

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01def1a0c9c935e80724468db5593147f2540df8a4cfa60b735e5750a1237076",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-07-17T14:59:00Z",
    "title_canon_sha256": "a07dfb61c9f51ab39966f00d600d3c247f9f4aa863fb27fe5940f7214a133abb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4692",
    "kind": "arxiv",
    "version": 1
  }
}