Pith Number

pith:X5LF7DJP

pith:2019:X5LF7DJPZ3MWCPLGTBKURABT22

not attested not anchored not stored refs pending

Proof-of-Prestige: A Useful Work Reward System for Unverifiable Tasks

Alberto Sonnino, Argyrios Tasiopoulos, Ioannis Psaras, Micha{\l} Kr\'ol, Mustafa Al-Bassam

arxiv:1905.03016 v1 · 2019-05-08 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X5LF7DJPZ3MWCPLGTBKURABT22}

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	2026-05-17T23:46:31.794578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf565f8d2fced9613d669855488033d695670456d925f86cb08aa94e11b35963

Aliases

arxiv: 1905.03016 · arxiv_version: 1905.03016v1 · doi: 10.48550/arxiv.1905.03016 · pith_short_12: X5LF7DJPZ3MW · pith_short_16: X5LF7DJPZ3MWCPLG · pith_short_8: X5LF7DJP

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/X5LF7DJPZ3MWCPLGTBKURABT22 \
  | 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: bf565f8d2fced9613d669855488033d695670456d925f86cb08aa94e11b35963

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b8e3b2156a988d893877088e7b5b146aaa8f372a1d02748a933851c7e580c0d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-05-08T11:51:15Z",
    "title_canon_sha256": "dc568e43e28bb267eabe934b88c352a6b0be9867d14e8fab809f1943dfebc8f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03016",
    "kind": "arxiv",
    "version": 1
  }
}