Pith Number

pith:KPA4ZC7L

pith:2017:KPA4ZC7LBKIZIQEZV5MTJHWEW3

not attested not anchored not stored refs pending

No Ly$\alpha$ emitters detected around a QSO at z=6.4: Suppressed by the QSO?

Kensei Shiki (Hiroshima U), Satoshi Kikuta, Satoshi Miyazaki (GUAS/NAOJ), Tetsuya Hashimoto (NTHU), Tomotsugu Goto (NTHU), Yousuke Utsumi (Hiroshima-U)

arxiv:1706.04620 v1 · 2017-06-14 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KPA4ZC7LBKIZIQEZV5MTJHWEW3}

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	2026-05-18T00:39:31.553298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53c1cc8beb0a91944099af59349ec4b6d20ed9697b81f611f9669d7874a2cd1f

Aliases

arxiv: 1706.04620 · arxiv_version: 1706.04620v1 · doi: 10.48550/arxiv.1706.04620 · pith_short_12: KPA4ZC7LBKIZ · pith_short_16: KPA4ZC7LBKIZIQEZ · pith_short_8: KPA4ZC7L

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/KPA4ZC7LBKIZIQEZV5MTJHWEW3 \
  | 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: 53c1cc8beb0a91944099af59349ec4b6d20ed9697b81f611f9669d7874a2cd1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "929e9b4ceda05f5322454101943ee7027f6342a9d3528a35fb12a3834d731d71",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-14T18:00:14Z",
    "title_canon_sha256": "f41369f44e0e4f253d61175bef600d23ceea3c448c38622f328f58243427fb0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04620",
    "kind": "arxiv",
    "version": 1
  }
}