Pith Number

pith:OQLFSJOA

pith:2020:OQLFSJOARWPH5XNQMIJJFYLABP

not attested not anchored not stored refs pending

Entropy production in the quantum walk

Alejandro Romanelli, Andr\'es Vallejo, Ra\'ul Donangelo, Renato Portugal

arxiv:2004.04850 v1 · 2020-04-09 · quant-ph · physics.atom-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{OQLFSJOARWPH5XNQMIJJFYLABP}

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	2026-07-05T00:54:14.793694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74165925c08d9e7eddb0621292e1600becc5735c4902316447ffe5541c63b966

Aliases

arxiv: 2004.04850 · arxiv_version: 2004.04850v1 · doi: 10.48550/arxiv.2004.04850 · pith_short_12: OQLFSJOARWPH · pith_short_16: OQLFSJOARWPH5XNQ · pith_short_8: OQLFSJOA

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/OQLFSJOARWPH5XNQMIJJFYLABP \
  | 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: 74165925c08d9e7eddb0621292e1600becc5735c4902316447ffe5541c63b966

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "478f065960b371ed25eaf9f1e1593816db2cec1e4715b2cc832779d275e1e4ff",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-04-09T23:18:29Z",
    "title_canon_sha256": "7c0317221fe8df8abd261a29c2e70b7b325962f6122941d6913957b1c31e24b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.04850",
    "kind": "arxiv",
    "version": 1
  }
}