Pith Number

pith:N6UHIL3F

pith:2014:N6UHIL3FC7LA7COA4WHAPQHSF2

not attested not anchored not stored refs pending

Quantum thermodynamics for a model of an expanding universe

David Edward Bruschi, Ivette Fuentes, John Goold, Kavan Modi, Nana Liu, Vlatko Vedral

arxiv:1409.5283 v2 · 2014-09-18 · quant-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N6UHIL3FC7LA7COA4WHAPQHSF2}

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	2026-05-18T01:22:57.940560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fa8742f6517d60f89c0e58e07c0f22eb236281fa38e30fe663981c6f9c513a1

Aliases

arxiv: 1409.5283 · arxiv_version: 1409.5283v2 · doi: 10.48550/arxiv.1409.5283 · pith_short_12: N6UHIL3FC7LA · pith_short_16: N6UHIL3FC7LA7COA · pith_short_8: N6UHIL3F

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/N6UHIL3FC7LA7COA4WHAPQHSF2 \
  | 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: 6fa8742f6517d60f89c0e58e07c0f22eb236281fa38e30fe663981c6f9c513a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "624c9d20129559f0eeae8d12b7de3b5d1c55373a02fd177f2a8d1a1ff2ee7fe5",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-09-18T12:36:46Z",
    "title_canon_sha256": "9ca8de93b376f03ce5fa390a4e0aeeb6d2bfb8f25eae9ff9299799ec88ee6816"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.5283",
    "kind": "arxiv",
    "version": 2
  }
}