Pith Number

pith:7PPG6JOG

pith:2026:7PPG6JOG77BV3Z6JYRJXKDYP4R

not attested not anchored not stored refs pending

Closed Timelike Curve Decoding on Quantum Hardware

Kazuki Ikeda, Sai Nandan Morapakula

arxiv:2607.27473 v1 · 2026-07-29 · 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{7PPG6JOG77BV3Z6JYRJXKDYP4R}

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	2026-07-31T01:23:48.969176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

fbde6f25c6ffc35de7c9c453750f0fe44ad3b83427d5b45221594c9f7d04db58

Aliases

arxiv: 2607.27473 · arxiv_version: 2607.27473v1 · doi: 10.48550/arxiv.2607.27473 · pith_short_12: 7PPG6JOG77BV · pith_short_16: 7PPG6JOG77BV3Z6J · pith_short_8: 7PPG6JOG

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/7PPG6JOG77BV3Z6JYRJXKDYP4R \
  | 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: fbde6f25c6ffc35de7c9c453750f0fe44ad3b83427d5b45221594c9f7d04db58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f63219fa8a801e7bf0a70b998b1f0a2a51953736f0a896b0afbf23c98078877a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-29T21:25:23Z",
    "title_canon_sha256": "9adc084b2b2b8fc3dd449c18db4a1b1c5d66de02aff553af74d7febae51fc2e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27473",
    "kind": "arxiv",
    "version": 1
  }
}