Pith Number

pith:642GCA2W

pith:2017:642GCA2WCATQG335VJ24UYUPJX

not attested not anchored not stored refs pending

Direct evidence for Ly$\alpha$ depletion in the protocluster core

Ichi Tanaka, Ken-ichi Tadaki, Masao Hayashi, Moegi Yamamoto, Nobunari Kashikawa, Rhythm Shimakawa, Tadayuki Kodama, Takatoshi Shibuya, Tomoko L. Suzuki, Yuichi Matsuda, Yusei Koyama

arxiv:1702.00100 v1 · 2017-02-01 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{642GCA2WCATQG335VJ24UYUPJX}

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	2026-05-18T00:48:14.992223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7346103561027036f7daa75ca628f4dfc509e27bcd7f0b4e1d8ffaccdbf1133

Aliases

arxiv: 1702.00100 · arxiv_version: 1702.00100v1 · doi: 10.48550/arxiv.1702.00100 · pith_short_12: 642GCA2WCATQ · pith_short_16: 642GCA2WCATQG335 · pith_short_8: 642GCA2W

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/642GCA2WCATQG335VJ24UYUPJX \
  | 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: f7346103561027036f7daa75ca628f4dfc509e27bcd7f0b4e1d8ffaccdbf1133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38b851e43f81cf55fec1f9a6229b7c486de7c1f4158322e2580279fe00b5ac49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-01T01:07:01Z",
    "title_canon_sha256": "3ace288d5a4aaa86de025151fb34f9d7e549320793ce18c1b8e9a28af93f22dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00100",
    "kind": "arxiv",
    "version": 1
  }
}