Pith Number

pith:PS74QGA7

pith:2018:PS74QGA7MALHUE6C2PNZPNP7BW

not attested not anchored not stored refs pending

Correlation-assisted process tomography

Marco Piani, Matteo Caiaffa

arxiv:1808.10835 v1 · 2018-08-31 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PS74QGA7MALHUE6C2PNZPNP7BW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:06:44.479556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cbfc8181f60167a13c2d3db97b5ff0d928d5c2830dff3851d1b691d2c74c36a

Aliases

arxiv: 1808.10835 · arxiv_version: 1808.10835v1 · doi: 10.48550/arxiv.1808.10835 · pith_short_12: PS74QGA7MALH · pith_short_16: PS74QGA7MALHUE6C · pith_short_8: PS74QGA7

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/PS74QGA7MALHUE6C2PNZPNP7BW \
  | 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: 7cbfc8181f60167a13c2d3db97b5ff0d928d5c2830dff3851d1b691d2c74c36a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5940eda14312097738fd37c77a47734a99ff13168a7df96589c07f395ac90dd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-31T16:43:54Z",
    "title_canon_sha256": "17565d72ade4fc64bb22abc4fd41135b404224b1d6d6dfe03ddf50bfd336a2f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10835",
    "kind": "arxiv",
    "version": 1
  }
}