Pith Number

pith:7CM6SCFX

pith:2017:7CM6SCFXFL7EAORTRAY6HRCWMT

not attested not anchored not stored refs pending

Non-negativity of conditional von Neumann entropy and global unitary operations

Indranil Chakrabarty, Nirman Ganguly, Subhasree Patro

arxiv:1703.01059 v2 · 2017-03-03 · 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{7CM6SCFXFL7EAORTRAY6HRCWMT}

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	2026-05-18T00:14:34.739973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f899e908b72afe403a338831e3c45664df28fc6768c54698ce073d6717bc215d

Aliases

arxiv: 1703.01059 · arxiv_version: 1703.01059v2 · doi: 10.48550/arxiv.1703.01059 · pith_short_12: 7CM6SCFXFL7E · pith_short_16: 7CM6SCFXFL7EAORT · pith_short_8: 7CM6SCFX

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/7CM6SCFXFL7EAORTRAY6HRCWMT \
  | 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: f899e908b72afe403a338831e3c45664df28fc6768c54698ce073d6717bc215d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de6779693561a54fb6d90de30c63213b19a51858a11249a45a7bc81e3ba08faa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-03-03T07:19:25Z",
    "title_canon_sha256": "246c5bb565498c53c4a5d5fa81039a9acf7f9fb9dd4cf92373c8f22581dbed87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.01059",
    "kind": "arxiv",
    "version": 2
  }
}