Pith Number

pith:Y7BFQKMJ

pith:2021:Y7BFQKMJDGJCPYTODRCADGROWP

not attested not anchored not stored refs pending

Quantum channel position finding using single photons

Athena Karsa, Jacques Carolan, Stefano Pirandola

arxiv:2109.00432 v2 · 2021-09-01 · 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{Y7BFQKMJDGJCPYTODRCADGROWP}

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	2026-07-05T04:33:21.651015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7c2582989199227e26e1c44019a2eb3fce3519aaa18ede9662c84f186b3a4d1

Aliases

arxiv: 2109.00432 · arxiv_version: 2109.00432v2 · doi: 10.48550/arxiv.2109.00432 · pith_short_12: Y7BFQKMJDGJC · pith_short_16: Y7BFQKMJDGJCPYTO · pith_short_8: Y7BFQKMJ

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/Y7BFQKMJDGJCPYTODRCADGROWP \
  | 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: c7c2582989199227e26e1c44019a2eb3fce3519aaa18ede9662c84f186b3a4d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67fcf9c04139abf8e0ad193a1d2d1ce66a5ce5030bd41d40770576c1239ec76b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-01T15:26:21Z",
    "title_canon_sha256": "1d6357608f196398a137f9a3b85cb1fec37a170bd1e4d1cea2a2aa48cd539adb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00432",
    "kind": "arxiv",
    "version": 2
  }
}