Pith Number

pith:MDWYV3XV

pith:2019:MDWYV3XVYQ7HIOMKBUW7BICWDN

not attested not anchored not stored refs pending

Spectral Quantum Tomography

Barbara M. Terhal, Francesco Battistel, Jonas Helsen

arxiv:1904.00177 v2 · 2019-03-30 · 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{MDWYV3XVYQ7HIOMKBUW7BICWDN}

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	2026-07-05T00:41:25.765537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60ed8aeef5c43e74398a0d2df0a0561b4f6be4b3020f4128b6b5e93dbaa43a1f

Aliases

arxiv: 1904.00177 · arxiv_version: 1904.00177v2 · doi: 10.48550/arxiv.1904.00177 · pith_short_12: MDWYV3XVYQ7H · pith_short_16: MDWYV3XVYQ7HIOMK · pith_short_8: MDWYV3XV

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/MDWYV3XVYQ7HIOMKBUW7BICWDN \
  | 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: 60ed8aeef5c43e74398a0d2df0a0561b4f6be4b3020f4128b6b5e93dbaa43a1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d732b02d09e0363fc7277c6b416842f932ce4598c60651a62f1c1bda6dbf4d66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-03-30T09:13:01Z",
    "title_canon_sha256": "c10c4dfc0bc96628370a93693d784102452cce7da926b335fb5f0ed6143e53a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.00177",
    "kind": "arxiv",
    "version": 2
  }
}