Pith Number

pith:APLLZAS5

pith:2018:APLLZAS5LY3U7TO4GS7X4K6VGD

not attested not anchored not stored refs pending

Exact density matrix of a discrete quantum system immersed in a thermal reservoir

A.J. van Wonderen, L.G. Suttorp

arxiv:1808.04198 v1 · 2018-08-13 · 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{APLLZAS5LY3U7TO4GS7X4K6VGD}

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	2026-05-18T00:08:18.627345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03d6bc825d5e374fcddc34bf7e2bd530e42897e65c66e123ed43c152d5e9b692

Aliases

arxiv: 1808.04198 · arxiv_version: 1808.04198v1 · doi: 10.48550/arxiv.1808.04198 · pith_short_12: APLLZAS5LY3U · pith_short_16: APLLZAS5LY3U7TO4 · pith_short_8: APLLZAS5

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/APLLZAS5LY3U7TO4GS7X4K6VGD \
  | 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: 03d6bc825d5e374fcddc34bf7e2bd530e42897e65c66e123ed43c152d5e9b692

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52701f35d60154b3b8dfdc0bdeebb91c002403d7d8f5431f2cc0046772349bbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-08-13T13:28:46Z",
    "title_canon_sha256": "7c2e9186af61e254dc46aac52c62278c49453b0e2fe0209f6f328756aa97756d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04198",
    "kind": "arxiv",
    "version": 1
  }
}