Pith Number

pith:KOVCLBDJ

pith:2018:KOVCLBDJ44TBQFEFWWZOSL5M7K

not attested not anchored not stored refs pending

Minimax quantum state estimation under Bregman divergence

Christopher Ferrie, Marco Tomamichel, Maria Quadeer

arxiv:1808.08984 v3 · 2018-08-27 · 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{KOVCLBDJ44TBQFEFWWZOSL5M7K}

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	2026-05-17T23:51:43.950616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53aa258469e726181485b5b2e92facfaa64d4a41309b5add1b5cca7323d7d388

Aliases

arxiv: 1808.08984 · arxiv_version: 1808.08984v3 · doi: 10.48550/arxiv.1808.08984 · pith_short_12: KOVCLBDJ44TB · pith_short_16: KOVCLBDJ44TBQFEF · pith_short_8: KOVCLBDJ

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/KOVCLBDJ44TBQFEFWWZOSL5M7K \
  | 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: 53aa258469e726181485b5b2e92facfaa64d4a41309b5add1b5cca7323d7d388

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca69180d882b124cf4579487313906f8406e4e8434c0304baa7d4b34a0d711c9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-27T18:11:40Z",
    "title_canon_sha256": "765c917ccc97848b9f8c3e336681ae755c22c79e6f5400dc06ead07a3a847fe2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08984",
    "kind": "arxiv",
    "version": 3
  }
}