Pith Number

pith:PKRTP53T

pith:2019:PKRTP53TZDVNWXAXZK7B4WZR6V

not attested not anchored not stored refs pending

Efficient computation of the waiting time and fidelity in quantum repeater chains

David Elkouss, Sebastiaan Brand, Tim Coopmans

arxiv:1912.07688 v1 · 2019-12-16 · 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{PKRTP53TZDVNWXAXZK7B4WZR6V}

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	2026-07-05T01:01:37.605764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7aa337f773c8eadb5c17cabe1e5b31f564cc626dc9dd579346b107c0ac1d838b

Aliases

arxiv: 1912.07688 · arxiv_version: 1912.07688v1 · doi: 10.48550/arxiv.1912.07688 · pith_short_12: PKRTP53TZDVN · pith_short_16: PKRTP53TZDVNWXAX · pith_short_8: PKRTP53T

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/PKRTP53TZDVNWXAXZK7B4WZR6V \
  | 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: 7aa337f773c8eadb5c17cabe1e5b31f564cc626dc9dd579346b107c0ac1d838b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb090ed3a4686b8874d62f72dc108b2e950b4ed54d4beab5faa4cb27e1af570b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-12-16T20:27:43Z",
    "title_canon_sha256": "552a19af60c706bf7fbc5d0ef15686350439e40c61cb0c31889db20afdf325fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.07688",
    "kind": "arxiv",
    "version": 1
  }
}