Pith Number

pith:FIGBVTQM

pith:2026:FIGBVTQM2MU3SLEYF2I43VAE7U

not attested not anchored not stored refs pending

Anytime-Valid Quantum State Tomography via Confidence Sequences

Aldo Cumitini, Luca Barletta, Osvaldo Simeone

arxiv:2601.20761 v2 · 2026-01-28 · cs.IT · math.IT · 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{FIGBVTQM2MU3SLEYF2I43VAE7U}

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	2026-05-20T00:00:32.531136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a0c1ace0cd329b92c982e91cdd404fd22cf54ee639c0163a316790333fb1481

Aliases

arxiv: 2601.20761 · arxiv_version: 2601.20761v2 · doi: 10.48550/arxiv.2601.20761 · pith_short_12: FIGBVTQM2MU3 · pith_short_16: FIGBVTQM2MU3SLEY · pith_short_8: FIGBVTQM

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/FIGBVTQM2MU3SLEYF2I43VAE7U \
  | 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: 2a0c1ace0cd329b92c982e91cdd404fd22cf54ee639c0163a316790333fb1481

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad191abb6e31a46efc1176b4fd45c63f535f01e721a5187d839e00381e07aa56",
    "cross_cats_sorted": [
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-01-28T16:49:28Z",
    "title_canon_sha256": "232fc3544fd2416612b76f6ccab0634c179346d0b1d3f442bfdd1c711062f5c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.20761",
    "kind": "arxiv",
    "version": 2
  }
}