Pith Number

pith:HKH26A7S

pith:2015:HKH26A7SW6KXEGCZ72HPNZBIRW

not attested not anchored not stored refs pending

Minimax quantum tomography: the ultimate bounds on accuracy

Christopher Ferrie, Robin Blume-Kohout

arxiv:1503.03100 v1 · 2015-03-10 · quant-ph · math.ST · stat.TH

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HKH26A7SW6KXEGCZ72HPNZBIRW}

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	2026-05-18T01:19:30.387650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a8faf03f2b795721859fe8ef6e4288dbd592d9de496e0069c7da5623726af86

Aliases

arxiv: 1503.03100 · arxiv_version: 1503.03100v1 · doi: 10.48550/arxiv.1503.03100 · pith_short_12: HKH26A7SW6KX · pith_short_16: HKH26A7SW6KXEGCZ · pith_short_8: HKH26A7S

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/HKH26A7SW6KXEGCZ72HPNZBIRW \
  | 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: 3a8faf03f2b795721859fe8ef6e4288dbd592d9de496e0069c7da5623726af86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43534b8732227a27e8d3e2984ecd7a5ef62d0158f86b9718b3e81dd0c6dc3237",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-03-10T21:20:38Z",
    "title_canon_sha256": "39fac09fac72c5fee7e915fd9a013d0d6c670eb37df494c65a0ec8a87298250f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03100",
    "kind": "arxiv",
    "version": 1
  }
}