Pith Number

pith:ILNOWWLO

pith:2015:ILNOWWLOI3KHJJW6UAHGR5DR4W

not attested not anchored not stored refs pending

An extremely dense group of massive galaxies at the centre of the protocluster at z = 3.09 in the SSA22 field

H. Umehata, I. Tanaka, M. Kajisawa, M. Kubo, T. Ichikawa, T. Yamada, Y. Matsuda

arxiv:1510.04816 v1 · 2015-10-16 · 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{ILNOWWLOI3KHJJW6UAHGR5DR4W}

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	2026-05-18T01:24:51.586509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42daeb596e46d474a6dea00e68f471e5ba1804eef38499521fb5bff6aea93126

Aliases

arxiv: 1510.04816 · arxiv_version: 1510.04816v1 · doi: 10.48550/arxiv.1510.04816 · pith_short_12: ILNOWWLOI3KH · pith_short_16: ILNOWWLOI3KHJJW6 · pith_short_8: ILNOWWLO

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/ILNOWWLOI3KHJJW6UAHGR5DR4W \
  | 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: 42daeb596e46d474a6dea00e68f471e5ba1804eef38499521fb5bff6aea93126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bff44f08c3935b0075f0a4319c79ff1c7769d6ad11dbb7147ff17a5585784d15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-16T08:35:55Z",
    "title_canon_sha256": "8ec78afd69fd9e68be6192d651b61f540bd93d7e1bca5e226e7043c998c67e51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04816",
    "kind": "arxiv",
    "version": 1
  }
}