Pith Number

pith:V62FWC3D

pith:2013:V62FWC3DLYXOD7E4DCVIBUP7AN

not attested not anchored not stored refs pending

Purification-based metric to measure the distance between quantum states and processes

Pedro W. Lamberti, Tristan M. Osan

arxiv:1303.1999 v2 · 2013-03-08 · 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{V62FWC3DLYXOD7E4DCVIBUP7AN}

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	2026-05-18T01:51:09.677534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afb45b0b635e2ee1fc9c18aa80d1ff0356f02f4f7136ea70399de8e2de0d5dc9

Aliases

arxiv: 1303.1999 · arxiv_version: 1303.1999v2 · doi: 10.48550/arxiv.1303.1999 · pith_short_12: V62FWC3DLYXO · pith_short_16: V62FWC3DLYXOD7E4 · pith_short_8: V62FWC3D

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/V62FWC3DLYXOD7E4DCVIBUP7AN \
  | 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: afb45b0b635e2ee1fc9c18aa80d1ff0356f02f4f7136ea70399de8e2de0d5dc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23752a57ed211cf468faa670a3ee430890bfa3fdf059d44ef8cbdd8fd4393527",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-08T14:13:13Z",
    "title_canon_sha256": "09ba283b631dd044d54b4930ba92a4716ef32b8f8422538cf1b4d853d38aefe8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1999",
    "kind": "arxiv",
    "version": 2
  }
}