Pith Number

pith:VFCK5524

pith:2014:VFCK5524WKNDJPZ4X2OL6WO57P

not attested not anchored not stored refs pending

Unbounded number of channel uses are required to see quantum capacity

David Elkouss, David Perez-Garcia, Maris Ozols, Sergii Strelchuk, Toby Cubitt, William Matthews

arxiv:1408.5115 v1 · 2014-08-21 · 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{VFCK5524WKNDJPZ4X2OL6WO57P}

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	2026-05-18T02:19:50.468431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a944aef75cb29a34bf3cbe9cbf59ddfbef1d3400347298060b9a24531cf8aac3

Aliases

arxiv: 1408.5115 · arxiv_version: 1408.5115v1 · doi: 10.48550/arxiv.1408.5115 · pith_short_12: VFCK5524WKND · pith_short_16: VFCK5524WKNDJPZ4 · pith_short_8: VFCK5524

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/VFCK5524WKNDJPZ4X2OL6WO57P \
  | 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: a944aef75cb29a34bf3cbe9cbf59ddfbef1d3400347298060b9a24531cf8aac3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "134745333a3b90b8a7e7997dba05af14fa1a6d3f5865d3633fea0cbef1c19a0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-08-21T19:19:50Z",
    "title_canon_sha256": "de42a6459f90d2b4e19db854ad915734f19dc118615874de689039e471d697c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5115",
    "kind": "arxiv",
    "version": 1
  }
}