Pith Number

pith:XV6LR2PB

pith:2014:XV6LR2PBTFJHBXGHULEVU34JLY

not attested not anchored not stored refs pending

Classicality condition on a system's observable in a quantum measurement and relative-entropy conservation law

Masahito Ueda, Yui Kuramochi

arxiv:1406.2130 v4 · 2014-06-09 · 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{XV6LR2PBTFJHBXGHULEVU34JLY}

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	2026-05-18T02:19:36.167656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd7cb8e9e1995270dcc7a2c95a6f895e273598763915aa9565ada1b47843be6c

Aliases

arxiv: 1406.2130 · arxiv_version: 1406.2130v4 · doi: 10.48550/arxiv.1406.2130 · pith_short_12: XV6LR2PBTFJH · pith_short_16: XV6LR2PBTFJHBXGH · pith_short_8: XV6LR2PB

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/XV6LR2PBTFJHBXGHULEVU34JLY \
  | 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: bd7cb8e9e1995270dcc7a2c95a6f895e273598763915aa9565ada1b47843be6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01dee5aea19fb05c07d8a3df87037b86c3aebae62d2a54b10ecdfb2acb2eeeec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-06-09T10:44:39Z",
    "title_canon_sha256": "7ef1c8a01d04c5d4a4d31b728bc2e9b6b4c8883069a1817f2b9ec3d94e55cf77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2130",
    "kind": "arxiv",
    "version": 4
  }
}