Pith Number

pith:CBKRRUBY

pith:2026:CBKRRUBYRPOTE462Z4QYH4A67O

not attested not anchored not stored refs pending

High fidelity preservation of photonic hyperentanglement in a free-space optical delay line

Alexander Ling, Anindya Banerji, Arya Chowdhury, Jia Boon Chin, Pranay Tiwari, Yu Guo

arxiv:2605.25609 v1 · 2026-05-25 · 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{CBKRRUBYRPOTE462Z4QYH4A67O}

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	2026-05-26T02:04:46.339233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

105518d0388bdd3273dacf2183f01efb895cfc702b734ff644321ac67230f982

Aliases

arxiv: 2605.25609 · arxiv_version: 2605.25609v1 · doi: 10.48550/arxiv.2605.25609 · pith_short_12: CBKRRUBYRPOT · pith_short_16: CBKRRUBYRPOTE462 · pith_short_8: CBKRRUBY

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/CBKRRUBYRPOTE462Z4QYH4A67O \
  | 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: 105518d0388bdd3273dacf2183f01efb895cfc702b734ff644321ac67230f982

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91103c63e033cc1f37aa5f7333b9c642d5b5ddffe045a60dabe7e1feba836a72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-25T09:02:14Z",
    "title_canon_sha256": "42a5260387e71f7a4e3f0aa8e4d1736e9b692d77fb154879ae1052133b7139d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25609",
    "kind": "arxiv",
    "version": 1
  }
}