Pith Number

pith:PWEJTE5C

pith:2015:PWEJTE5CRIXHLV5N5NXNJ6MJYW

not attested not anchored not stored refs pending

Enhancement of Frequency Estimation by Spatially Correlated Environments

A. S. Khorashad, R. Yousefjani, S. Salimi

arxiv:1508.01990 v4 · 2015-08-09 · 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{PWEJTE5CRIXHLV5N5NXNJ6MJYW}

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	2026-05-18T00:45:08.665510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d889993a28a2e75d7adeb6ed4f989c59b315cbd0c5ab12039018cd209886392

Aliases

arxiv: 1508.01990 · arxiv_version: 1508.01990v4 · doi: 10.48550/arxiv.1508.01990 · pith_short_12: PWEJTE5CRIXH · pith_short_16: PWEJTE5CRIXHLV5N · pith_short_8: PWEJTE5C

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/PWEJTE5CRIXHLV5N5NXNJ6MJYW \
  | 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: 7d889993a28a2e75d7adeb6ed4f989c59b315cbd0c5ab12039018cd209886392

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efff98005424cbe3c6e7afe72d466fe75d3456357ad0d4bcc5a28166000b5e54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-08-09T06:31:10Z",
    "title_canon_sha256": "e8564d226988d03b317554bc6342c6c9aba02747530a3b9e80df12bf462afea3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.01990",
    "kind": "arxiv",
    "version": 4
  }
}