Pith Number

pith:M6DFYVXP

pith:2011:M6DFYVXP4BQUZRQVEQZ2GYZJCQ

not attested not anchored not stored refs pending

Simple Adaption of Measurements for Qudit Estimation

Christof J. Happ, Matthias Freyberger

arxiv:1108.2165 v1 · 2011-08-10 · 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{M6DFYVXP4BQUZRQVEQZ2GYZJCQ}

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	2026-05-18T02:00:55.694718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67865c56efe0614cc6152433a36329142a17c08feb631ad6a1cf40d82a053f06

Aliases

arxiv: 1108.2165 · arxiv_version: 1108.2165v1 · doi: 10.48550/arxiv.1108.2165 · pith_short_12: M6DFYVXP4BQU · pith_short_16: M6DFYVXP4BQUZRQV · pith_short_8: M6DFYVXP

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/M6DFYVXP4BQUZRQVEQZ2GYZJCQ \
  | 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: 67865c56efe0614cc6152433a36329142a17c08feb631ad6a1cf40d82a053f06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1929af8e5177596e3a7210bbd93a3d4171ce0beffdec20b0b190e5b77bdd0780",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-08-10T12:42:33Z",
    "title_canon_sha256": "890297ab9009d890b4b76fb8804cb657c667a9fa8d3a139688c0ba42ef2f736a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2165",
    "kind": "arxiv",
    "version": 1
  }
}