Pith Number

pith:6SETNMFJ

pith:2021:6SETNMFJ7A3P7K2MMMMX4MUSYR

not attested not anchored not stored refs pending

Fibre polarization state compensation in entanglement-based quantum key distribution

Alexander Ling, Christian Kurtsiefer, Hou Shun Poh, Yicheng Shi

arxiv:2107.07654 v1 · 2021-07-16 · 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{6SETNMFJ7A3P7K2MMMMX4MUSYR}

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	2026-07-05T03:25:33.475279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f48936b0a9f836ffab4c63197e3292c47ef137ebceeb6673e12ff361a9fcb95d

Aliases

arxiv: 2107.07654 · arxiv_version: 2107.07654v1 · doi: 10.48550/arxiv.2107.07654 · pith_short_12: 6SETNMFJ7A3P · pith_short_16: 6SETNMFJ7A3P7K2M · pith_short_8: 6SETNMFJ

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/6SETNMFJ7A3P7K2MMMMX4MUSYR \
  | 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: f48936b0a9f836ffab4c63197e3292c47ef137ebceeb6673e12ff361a9fcb95d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd2eab34cad50465d00e616dd0a6037592faf34411392c7c47666d6a0af7852",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-07-16T00:53:48Z",
    "title_canon_sha256": "7e9152b5508080aa441778e565e1e24e6b7f153051b369555301cc36355374fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.07654",
    "kind": "arxiv",
    "version": 1
  }
}