Pith Number

pith:UYY2ZBBA

pith:2010:UYY2ZBBATNE4YISMM2MGWF5RYP

not attested not anchored not stored refs pending

Approximate joint measurement of qubit observables through an Arthur-Kelly type model

Rajarshi Pal, Sibasish Ghosh

arxiv:1010.2878 v2 · 2010-10-14 · 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{UYY2ZBBATNE4YISMM2MGWF5RYP}

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	2026-05-18T03:20:57.343300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a631ac84209b49cc224c66986b17b1c3d5686dce66726b711ced39bf6d90241f

Aliases

arxiv: 1010.2878 · arxiv_version: 1010.2878v2 · doi: 10.48550/arxiv.1010.2878 · pith_short_12: UYY2ZBBATNE4 · pith_short_16: UYY2ZBBATNE4YISM · pith_short_8: UYY2ZBBA

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/UYY2ZBBATNE4YISMM2MGWF5RYP \
  | 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: a631ac84209b49cc224c66986b17b1c3d5686dce66726b711ced39bf6d90241f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06c4ef8d87c1c36056676fc6fef36aacfcd407e4eab6e77a7a32b5c5e8e7e66f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-10-14T11:21:34Z",
    "title_canon_sha256": "25f0cfb923bdb585c9ca9d5981b0e057b0d773d3c5219b25c1c21a90ed3601d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2878",
    "kind": "arxiv",
    "version": 2
  }
}