Pith Number

pith:CLBF7C7A

pith:2012:CLBF7C7AVES6BQWI5F5D7YZAFD

not attested not anchored not stored refs pending

If no information gain implies no disturbance, then any discrete physical theory is classical

Corsin Pfister, Stephanie Wehner

arxiv:1210.0194 v4 · 2012-09-30 · 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{CLBF7C7AVES6BQWI5F5D7YZAFD}

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	2026-05-18T03:17:57.204705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12c25f8be0a925e0c2c8e97a3fe32028e4ad8916abc35e5bef9fc732810d6638

Aliases

arxiv: 1210.0194 · arxiv_version: 1210.0194v4 · doi: 10.48550/arxiv.1210.0194 · pith_short_12: CLBF7C7AVES6 · pith_short_16: CLBF7C7AVES6BQWI · pith_short_8: CLBF7C7A

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/CLBF7C7AVES6BQWI5F5D7YZAFD \
  | 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: 12c25f8be0a925e0c2c8e97a3fe32028e4ad8916abc35e5bef9fc732810d6638

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "126d619a453d269250806a384b9e8feb2940909b99f6ecedabdee51efad1537b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-09-30T13:19:31Z",
    "title_canon_sha256": "2afe75365f9b555fb35ab9913f4ae05d8dbe572a96ed26123f934067d54d1ab0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0194",
    "kind": "arxiv",
    "version": 4
  }
}