Pith Number

pith:EIPN2RJH

pith:2017:EIPN2RJHTP2HW3OIHQDCUTPZJY

not attested not anchored not stored refs pending

Quantum Circuit Cosmology: The Expansion of the Universe Since the First Qubit

ChunJun Cao, Liam McAllister, Ning Bao, Sean M. Carroll

arxiv:1702.06959 v2 · 2017-02-22 · hep-th · astro-ph.CO · gr-qc · quant-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{EIPN2RJHTP2HW3OIHQDCUTPZJY}

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	2026-05-18T00:46:18.479886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

221edd45279bf47b6dc83c062a4df94e2f4a3898130dc07e4b4bb83f08a72221

Aliases

arxiv: 1702.06959 · arxiv_version: 1702.06959v2 · doi: 10.48550/arxiv.1702.06959 · pith_short_12: EIPN2RJHTP2H · pith_short_16: EIPN2RJHTP2HW3OI · pith_short_8: EIPN2RJH

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/EIPN2RJHTP2HW3OIHQDCUTPZJY \
  | 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: 221edd45279bf47b6dc83c062a4df94e2f4a3898130dc07e4b4bb83f08a72221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5430109ae81939740ef8a98ac292e638e40d4da8a9e39046617bf263e22f385e",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2017-02-22T19:00:03Z",
    "title_canon_sha256": "11f728bbe0848cd73e09a14aaecd3c7ffd8eb2bbbcc46225507a04c5305146aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06959",
    "kind": "arxiv",
    "version": 2
  }
}