Pith Number

pith:RU35OYMV

pith:2017:RU35OYMVKI5BJ22LSJAFUPC26Y

not attested not anchored not stored refs pending

Witnessing quantumness of a system by observing only its classical features

Chiara Marletto, Vlatko Vedral

arxiv:1704.00120 v1 · 2017-04-01 · 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{RU35OYMVKI5BJ22LSJAFUPC26Y}

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	2026-05-18T00:47:25.400860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d37d76195523a14eb4b92405a3c5af60c9c92fb48aab37acbb39ba29764b7b6

Aliases

arxiv: 1704.00120 · arxiv_version: 1704.00120v1 · doi: 10.48550/arxiv.1704.00120 · pith_short_12: RU35OYMVKI5B · pith_short_16: RU35OYMVKI5BJ22L · pith_short_8: RU35OYMV

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/RU35OYMVKI5BJ22LSJAFUPC26Y \
  | 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: 8d37d76195523a14eb4b92405a3c5af60c9c92fb48aab37acbb39ba29764b7b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5c35e4c9051c3d45187a79571fa4158b4a87a27890105d3a85334d1f1c0c56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-04-01T05:03:51Z",
    "title_canon_sha256": "c5e5d9d02b08d4dde6f4cb266af7977ee564a455fee8e498eab8b4186f1f5525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00120",
    "kind": "arxiv",
    "version": 1
  }
}