Pith Number

pith:DB4UIBG4

pith:2015:DB4UIBG464V7PAA2Z5QEUF4YLQ

not attested not anchored not stored refs pending

Depolarizing channel parameter estimation using noisy initial states

David Collins, Jaimie Stephens

arxiv:1506.06147 v1 · 2015-06-19 · 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{DB4UIBG464V7PAA2Z5QEUF4YLQ}

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	2026-05-18T01:28:54.776849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18794404dcf72bf7801acf604a17985c216dd889c40da703f418af6db3b01c2b

Aliases

arxiv: 1506.06147 · arxiv_version: 1506.06147v1 · doi: 10.48550/arxiv.1506.06147 · pith_short_12: DB4UIBG464V7 · pith_short_16: DB4UIBG464V7PAA2 · pith_short_8: DB4UIBG4

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/DB4UIBG464V7PAA2Z5QEUF4YLQ \
  | 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: 18794404dcf72bf7801acf604a17985c216dd889c40da703f418af6db3b01c2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a89fb8ad92b48b58d4ad1188b3ea157ee59b317295f6fede230414e0ab4ab6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-06-19T20:18:25Z",
    "title_canon_sha256": "7e2cc9d55d0c3f7669d466346f7274a7dea525a8a7e577912ec4109f193fbf42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06147",
    "kind": "arxiv",
    "version": 1
  }
}