Pith Number

pith:K6KBS4KF

pith:2012:K6KBS4KF2AWDUU3YVW56YZC4L4

not attested not anchored not stored refs pending

Unconditionally verifiable blind computation

Elham Kashefi, Joseph F. Fitzsimons

arxiv:1203.5217 v3 · 2012-03-23 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K6KBS4KF2AWDUU3YVW56YZC4L4}

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

3 papers in Pith

Authentication in Quantum Networks

BPBO: Blindness-Preserving Brickwork Optimization by Certified Region Resynthesis

Lower overhead fault-tolerant building blocks for noisy quantum computers

Receipt and verification

First computed	2026-05-18T00:40:34.060364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5794197145d02c3a5378adbbec645c5f0d908b04b2bbd7810402f3dcc038a99d

Aliases

arxiv: 1203.5217 · arxiv_version: 1203.5217v3 · doi: 10.48550/arxiv.1203.5217 · pith_short_12: K6KBS4KF2AWD · pith_short_16: K6KBS4KF2AWDUU3Y · pith_short_8: K6KBS4KF

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/K6KBS4KF2AWDUU3YVW56YZC4L4 \
  | 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: 5794197145d02c3a5378adbbec645c5f0d908b04b2bbd7810402f3dcc038a99d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ad6e6d4fe3a55f3fb96386b998d884c7dc9644de1f6dd402a50da825db708ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-03-23T11:46:40Z",
    "title_canon_sha256": "6b9d93d4dd110f2b779c16bd52947aff7d20026b3c5d18da79c574e9b79a5f21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5217",
    "kind": "arxiv",
    "version": 3
  }
}