Pith Number

pith:MUVP3JZU

pith:2024:MUVP3JZUVUKWQVGHCGX753HAPX

not attested not anchored not stored refs pending

Optimization-based Proof of Useful Work: Framework, Modeling, and Security Analysis

Jiaheng Wang, Weihang Cao, Xintong Ling, Xiqi Gao, Zhi Ding

arxiv:2405.19027 v2 · 2024-05-29 · 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{MUVP3JZUVUKWQVGHCGX753HAPX}

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	2026-07-05T10:22:00.187288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

652afda734ad156854c711affeece07de38129831ff2c008a3699018fc330e1c

Aliases

arxiv: 2405.19027 · arxiv_version: 2405.19027v2 · doi: 10.48550/arxiv.2405.19027 · pith_short_12: MUVP3JZUVUKW · pith_short_16: MUVP3JZUVUKWQVGH · pith_short_8: MUVP3JZU

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/MUVP3JZUVUKWQVGHCGX753HAPX \
  | 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: 652afda734ad156854c711affeece07de38129831ff2c008a3699018fc330e1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "346dca3747c674aa20ac11230246608c1af382cd15add7217279dd2ea7874cf4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2024-05-29T12:13:03Z",
    "title_canon_sha256": "9e7877fb4380c59c10a47ef496c0cd543c8c60b2357ac17ffadb70aeb480404e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.19027",
    "kind": "arxiv",
    "version": 2
  }
}