Pith Number

pith:QGP2RWX6

pith:2020:QGP2RWX6EJXUVT45KGLD2H4YF7

not attested not anchored not stored refs pending

Proofs of Useless Work -- Positive and Negative Results for Wasteless Mining Systems

Maya Dotan, Saar Tochner

arxiv:2007.01046 v2 · 2020-07-02 · cs.CR · cs.DC · cs.MA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QGP2RWX6EJXUVT45KGLD2H4YF7}

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.

Cited by

1 paper in Pith

ScaloWork: Useful Proof-of-Work with Distributed Pool Mining

Receipt and verification

First computed	2026-07-05T03:29:45.526441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

819fa8dafe226f4acf9d51963d1f982fc40c8d0c8a0ac4b2a09a2dde3909a417

Aliases

arxiv: 2007.01046 · arxiv_version: 2007.01046v2 · doi: 10.48550/arxiv.2007.01046 · pith_short_12: QGP2RWX6EJXU · pith_short_16: QGP2RWX6EJXUVT45 · pith_short_8: QGP2RWX6

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/QGP2RWX6EJXUVT45KGLD2H4YF7 \
  | 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: 819fa8dafe226f4acf9d51963d1f982fc40c8d0c8a0ac4b2a09a2dde3909a417

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "438d85feb52a2e11fa4dd97af160088cacadd43dffed6dc33a1a7eb79b385c5c",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.MA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2020-07-02T12:07:26Z",
    "title_canon_sha256": "31f618397a5e65ac40833912c30dc17bf76acc09612afd88e133fd4f06908454"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.01046",
    "kind": "arxiv",
    "version": 2
  }
}