Pith Number

pith:L4BCFWQR

pith:2011:L4BCFWQRYIP7ZFK3CCSBWFECRT

not attested not anchored not stored refs pending

Cross identification between X-ray and Optical Clusters of Galaxies in the SDSS DR7 Field

Erwin T. Lau, Frank C. van den Bosch, H. J. Mo, Lei Wang, Q. D. Wang, Wentao Luo, Xiaohu Yang, Yu Wang

arxiv:1110.1987 v2 · 2011-10-10 · astro-ph.CO

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T02:25:11.678899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f0222da11c21ffc955b10a41b14828cd19c50577cc19bc7f25b3ef5f36dc778

Aliases

arxiv: 1110.1987 · arxiv_version: 1110.1987v2 · doi: 10.48550/arxiv.1110.1987

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/L4BCFWQRYIP7ZFK3CCSBWFECRT \
  | 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: 5f0222da11c21ffc955b10a41b14828cd19c50577cc19bc7f25b3ef5f36dc778

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7a111e493d9ef97b7d3a6f52955d68f1351c9e3f0009681757cb49ba4af26a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-10T10:22:21Z",
    "title_canon_sha256": "54f6e14d25108879722c1d796827eb47c188347090f9b81753f4c6e573cee386"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1987",
    "kind": "arxiv",
    "version": 2
  }
}