Pith Number

pith:SQIFVYSR

pith:2019:SQIFVYSRHZT3OSGZOMKPIKLWD2

not attested not anchored not stored refs pending

Proofware: Proof of Useful Work Blockchain Consensus Protocol for Decentralized Applications

Albert Y. Zomaya, Young Choon Lee, Zhongli Dong

arxiv:1903.09276 v1 · 2019-03-22 · cs.DC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQIFVYSRHZT3OSGZOMKPIKLWD2}

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	2026-05-17T23:50:40.127357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94105ae2513e67b748d97314f429761eb0c1f8a29bec21be41c513a6e9369eba

Aliases

arxiv: 1903.09276 · arxiv_version: 1903.09276v1 · doi: 10.48550/arxiv.1903.09276 · pith_short_12: SQIFVYSRHZT3 · pith_short_16: SQIFVYSRHZT3OSGZ · pith_short_8: SQIFVYSR

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/SQIFVYSRHZT3OSGZOMKPIKLWD2 \
  | 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: 94105ae2513e67b748d97314f429761eb0c1f8a29bec21be41c513a6e9369eba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee069c35c1ed5e1a996d8f837214cc32bfc4c88211407833bce1f2412a1efc49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2019-03-22T00:12:15Z",
    "title_canon_sha256": "c8d52e7f165eb8ffce083e115852c208153db8706bd08b85f4210e81b0f45ac6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09276",
    "kind": "arxiv",
    "version": 1
  }
}