Pith Number

pith:6VQO2R3Y

pith:2018:6VQO2R3YCOJ26C3EINONELL4I7

not attested not anchored not stored refs pending

Quantifying time irreversibility using probabilistic differences between symmetric permutations

Jiafei Dai, Jun Wang, Wenli Yao, Wenpo Yao

arxiv:1801.05421 v3 · 2018-01-16 · physics.med-ph · physics.bio-ph · q-bio.NC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6VQO2R3YCOJ26C3EINONELL4I7}

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.

Cited by

1 paper in Pith

Time irreversibility of resting brain activity in the healthy brain and pathology

Receipt and verification

First computed	2026-05-17T23:54:34.649656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f560ed47781393af0b64435cd22d7c47c1748112db2f7fa1b90a2a03b6b3dd0a

Aliases

arxiv: 1801.05421 · arxiv_version: 1801.05421v3 · doi: 10.48550/arxiv.1801.05421 · pith_short_12: 6VQO2R3YCOJ2 · pith_short_16: 6VQO2R3YCOJ26C3E · pith_short_8: 6VQO2R3Y

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/6VQO2R3YCOJ26C3EINONELL4I7 \
  | 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: f560ed47781393af0b64435cd22d7c47c1748112db2f7fa1b90a2a03b6b3dd0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "026685d3734183dcfe483e6c57d85e29ce6dc3450f32dae1a13f41ab4e456e45",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2018-01-16T08:13:53Z",
    "title_canon_sha256": "8e7faa0fab5ae6993b8cebdc8233abeecaa6036ab58357fed7743c6eafe595a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05421",
    "kind": "arxiv",
    "version": 3
  }
}