Pith Number

pith:V4FPROWL

pith:2016:V4FPROWLAQ5VIGDKLY2ROPV7L5

not attested not anchored not stored refs pending

Universal Optimal Estimation of the Polarization of Light with Arbitrary Photon Statistics

Kam Wai Clifford Chan, Lu Zhang, Pramode K. Verma

arxiv:1603.04346 v1 · 2016-03-14 · 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{V4FPROWLAQ5VIGDKLY2ROPV7L5}

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	2026-05-18T01:16:39.731760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af0af8bacb043b54186a5e35173ebf5f5f2512bbdaf148b694318d958a2f8832

Aliases

arxiv: 1603.04346 · arxiv_version: 1603.04346v1 · doi: 10.48550/arxiv.1603.04346 · pith_short_12: V4FPROWLAQ5V · pith_short_16: V4FPROWLAQ5VIGDK · pith_short_8: V4FPROWL

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/V4FPROWLAQ5VIGDKLY2ROPV7L5 \
  | 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: af0af8bacb043b54186a5e35173ebf5f5f2512bbdaf148b694318d958a2f8832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa9c0204e62dc4040ddd9405cc9d611a325307588c82f1dd38c79f787571870c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-03-14T17:02:27Z",
    "title_canon_sha256": "8e00adeec62ebe76942c21e3f9acea9bafbcc088d855a75bbd670757ccd20b14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04346",
    "kind": "arxiv",
    "version": 1
  }
}