Pith Number

pith:TWABGXKM

pith:2025:TWABGXKMZCBA7MR3BX57GTPDQA

not attested not anchored not stored refs pending

Two-parameter estimation via photon subtraction operation within a feedback-assisted interferometer

Cunjin Liu, Liyun Hu, Qingqian Kang, Qisi Zhou, Sanqiu Liu, Teng Zhao, Xin Su, Zekun Zhao

arxiv:2506.05756 v1 · 2025-06-06 · 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{TWABGXKMZCBA7MR3BX57GTPDQA}

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	2026-07-05T11:17:09.173782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d80135d4cc8820fb23b0dfbf34de38016a8a34419de64b5e8efdf9e9f575072

Aliases

arxiv: 2506.05756 · arxiv_version: 2506.05756v1 · doi: 10.48550/arxiv.2506.05756 · pith_short_12: TWABGXKMZCBA · pith_short_16: TWABGXKMZCBA7MR3 · pith_short_8: TWABGXKM

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/TWABGXKMZCBA7MR3BX57GTPDQA \
  | 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: 9d80135d4cc8820fb23b0dfbf34de38016a8a34419de64b5e8efdf9e9f575072

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48fbf634942583d0fbb380deee40a2a3a946da6499f1ab493b997deb581515cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-06-06T05:29:25Z",
    "title_canon_sha256": "8660ecde0d8e306122dc416475b094a088a003377937e9cb1b2147a97dc3e60b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.05756",
    "kind": "arxiv",
    "version": 1
  }
}