Pith Number

pith:7EKGB4BZ

pith:2019:7EKGB4BZ6XS3SNLDQB4BIEHD7I

not attested not anchored not stored refs pending

What condensed matter physics and statistical physics teach us about the limits of unitary time evolution

Barbara Drossel

arxiv:1908.10145 v1 · 2019-08-27 · quant-ph · cond-mat.other

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EKGB4BZ6XS3SNLDQB4BIEHD7I}

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	2026-07-05T01:04:42.492109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f91460f039f5e5b9356380781410e3fa3d748a9fd4f7907b30571316d9f7d2cc

Aliases

arxiv: 1908.10145 · arxiv_version: 1908.10145v1 · doi: 10.48550/arxiv.1908.10145 · pith_short_12: 7EKGB4BZ6XS3 · pith_short_16: 7EKGB4BZ6XS3SNLD · pith_short_8: 7EKGB4BZ

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/7EKGB4BZ6XS3SNLDQB4BIEHD7I \
  | 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: f91460f039f5e5b9356380781410e3fa3d748a9fd4f7907b30571316d9f7d2cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e800fabb9d87bbceacda1a735c07702e6f3a86a0aa7bf2d7af1c93f6aae6840b",
    "cross_cats_sorted": [
      "cond-mat.other"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-27T11:38:49Z",
    "title_canon_sha256": "3a6f3ca7102b176e9c1571f9acd3e4fb5a45d6d940a32a64d1e7d74413191b1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10145",
    "kind": "arxiv",
    "version": 1
  }
}