Pith Number

pith:UP7TUEOC

pith:2010:UP7TUEOCJJOUEYVGAMPBADJRIC

not attested not anchored not stored refs pending

Private Randomness Expansion With Untrusted Devices

Adrian Kent, Roger Colbeck

arxiv:1011.4474 v3 · 2010-11-19 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UP7TUEOCJJOUEYVGAMPBADJRIC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:27:37.854144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3ff3a11c24a5d4262a6031e100d3140aa421fd317f6f4e060ee38415c862195

Aliases

arxiv: 1011.4474 · arxiv_version: 1011.4474v3 · doi: 10.48550/arxiv.1011.4474 · pith_short_12: UP7TUEOCJJOU · pith_short_16: UP7TUEOCJJOUEYVG · pith_short_8: UP7TUEOC

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/UP7TUEOCJJOUEYVGAMPBADJRIC \
  | 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: a3ff3a11c24a5d4262a6031e100d3140aa421fd317f6f4e060ee38415c862195

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "053729b51f40dc134c4ade73f605423ed9cc1825fdf3f9ebb4fc0d6ce3b3b21a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-11-19T17:04:37Z",
    "title_canon_sha256": "cb8a0a57c71fb4aabdd92c249a2e1def90e1ca5acbbed5c6e3f5e283c4c1b94f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4474",
    "kind": "arxiv",
    "version": 3
  }
}