pith. sign in
Pith Number

pith:DRQFZSN3

pith:2016:DRQFZSN3X22IXOLL2BAUFSOORE
not attested not anchored not stored refs pending

Irreversibility in physics stemming from unpredictable symbol-handling agents

F. Hadi Madjid, John M. Myers

arxiv:1604.06771 v1 · 2016-04-22 · quant-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{DRQFZSN3X22IXOLL2BAUFSOORE}

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 2026-05-18T01:08:17.524486Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1c605cc9bbbeb48bb96bd04142c9ce892b00ef5bb2f311772c85ebe0eab010ba

Aliases

arxiv: 1604.06771 · arxiv_version: 1604.06771v1 · doi: 10.48550/arxiv.1604.06771 · pith_short_12: DRQFZSN3X22I · pith_short_16: DRQFZSN3X22IXOLL · pith_short_8: DRQFZSN3
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/DRQFZSN3X22IXOLL2BAUFSOORE \
  | 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: 1c605cc9bbbeb48bb96bd04142c9ce892b00ef5bb2f311772c85ebe0eab010ba
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "b29c619c72499758c05213c179e9515350f7c072446e3a0968f78dc76baed38d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-04-22T18:49:06Z",
    "title_canon_sha256": "a0e9551da4223e315fdf4f9ede7ceb23e2fb03abd8e9ed4a58c360df717ec147"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06771",
    "kind": "arxiv",
    "version": 1
  }
}