Pith Number

pith:NF5NWL3N

pith:2011:NF5NWL3NGR6W2SCZAKQ7EUJWRB

not attested not anchored not stored refs pending

Effectively Nonblocking Consensus Procedures Can Execute Forever - a Constructive Version of FLP

Robert Constable

arxiv:1109.3370 v1 · 2011-09-15 · 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{NF5NWL3NGR6W2SCZAKQ7EUJWRB}

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	2026-05-18T04:12:56.877702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

697adb2f6d347d6d485902a1f25136886d3a3ae81843ad9ebd7f5ae9cca5e035

Aliases

arxiv: 1109.3370 · arxiv_version: 1109.3370v1 · doi: 10.48550/arxiv.1109.3370 · pith_short_12: NF5NWL3NGR6W · pith_short_16: NF5NWL3NGR6W2SCZ · pith_short_8: NF5NWL3N

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/NF5NWL3NGR6W2SCZAKQ7EUJWRB \
  | 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: 697adb2f6d347d6d485902a1f25136886d3a3ae81843ad9ebd7f5ae9cca5e035

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52f6a2b24dd1793ef0bf9be60be24a71267d35bd90cafb9ecc9f118267922d87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-09-15T14:54:07Z",
    "title_canon_sha256": "0aed2f707d47484f9038a0b4c01a55c8a50248a4adcae76c83e9117b830aff03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3370",
    "kind": "arxiv",
    "version": 1
  }
}