Pith Number

pith:6CDI7RQB

pith:2013:6CDI7RQB67DYZPPSFOSENPMO7Q

not attested not anchored not stored refs pending

Coarse-grained quantum state estimation for noisy measurements

Jaroslav Rehacek, Yong Siah Teo, Zdenek Hradil

arxiv:1304.1866 v1 · 2013-04-06 · 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{6CDI7RQB67DYZPPSFOSENPMO7Q}

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	2026-05-18T03:15:57.470326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0868fc601f7c78cbdf22ba446bd8efc3ac1092474025b59d0a3c0f384c42dc0

Aliases

arxiv: 1304.1866 · arxiv_version: 1304.1866v1 · doi: 10.48550/arxiv.1304.1866 · pith_short_12: 6CDI7RQB67DY · pith_short_16: 6CDI7RQB67DYZPPS · pith_short_8: 6CDI7RQB

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/6CDI7RQB67DYZPPSFOSENPMO7Q \
  | 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: f0868fc601f7c78cbdf22ba446bd8efc3ac1092474025b59d0a3c0f384c42dc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "407d34b050e34a46190ec4eb100402b302ceb126fa1181d502e1583623de304e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-04-06T08:21:15Z",
    "title_canon_sha256": "a3563e9b53ff5ca52ecf4b963cef9c3d69a1fce48f65263ffcdebfe2ddb02e82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1866",
    "kind": "arxiv",
    "version": 1
  }
}