Pith Number

pith:X44CQYIV

pith:2016:X44CQYIVM7PD6OU3MZ7DKZNUP7

not attested not anchored not stored refs pending

Composably secure time-frequency quantum key distribution

Jonathan Barrett, Joshua Nunn, Nathan Walk

arxiv:1609.09436 v1 · 2016-09-29 · 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{X44CQYIVM7PD6OU3MZ7DKZNUP7}

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	2026-05-18T01:03:37.914041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf3828611567de3f3a9b667e3565b47fcd4ea78c55ff3606c1adbbc563128821

Aliases

arxiv: 1609.09436 · arxiv_version: 1609.09436v1 · doi: 10.48550/arxiv.1609.09436 · pith_short_12: X44CQYIVM7PD · pith_short_16: X44CQYIVM7PD6OU3 · pith_short_8: X44CQYIV

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/X44CQYIVM7PD6OU3MZ7DKZNUP7 \
  | 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: bf3828611567de3f3a9b667e3565b47fcd4ea78c55ff3606c1adbbc563128821

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98fed3afb2419e85f450bd1510f1fdc108c72a28f0e8150c45e7575733af5440",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-09-29T17:39:10Z",
    "title_canon_sha256": "a7890e9d26932ae2f49983531dc11920c2f01f9755c5b3c1b0f32cf7ab4d4f88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09436",
    "kind": "arxiv",
    "version": 1
  }
}