Pith Number

pith:Y74EK5RB

pith:2010:Y74EK5RBKWNQZPF7OPKC7SDFRD

not attested not anchored not stored refs pending

Excess AGN Activity in the z=2.30 Protocluster in HS 1700+64

A. E. Shapley (UCLA), A. Georgakakis (NOA), C. C. Steidel (Caltech), D. K. Erb (UCSB), E. S. Laird (ICL), J. A. Digby-North (ICL), J. Aird (UCSD), K. Nandra (ICL), M. Bogosavljevi\'c (CalTech), N. A. Reddy (NOAO)

arxiv:1005.1833 v1 · 2010-05-11 · astro-ph.CO · 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{Y74EK5RBKWNQZPF7OPKC7SDFRD}

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	2026-05-18T02:07:34.260248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7f8457621559b0cbcbf73d42fc86588da66c254dedfef1a01ca69c74801e691

Aliases

arxiv: 1005.1833 · arxiv_version: 1005.1833v1 · doi: 10.48550/arxiv.1005.1833 · pith_short_12: Y74EK5RBKWNQ · pith_short_16: Y74EK5RBKWNQZPF7 · pith_short_8: Y74EK5RB

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/Y74EK5RBKWNQZPF7OPKC7SDFRD \
  | 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: c7f8457621559b0cbcbf73d42fc86588da66c254dedfef1a01ca69c74801e691

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "996b9d0ca8166ac7eb86fdbf919e024ac6a8443490fe9ac278c2e0d3abb1e15d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-11T13:51:57Z",
    "title_canon_sha256": "efd12112e9625a2a5f0d8566247893ff91794a2b475c096ac28c7be25c3bf5d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1833",
    "kind": "arxiv",
    "version": 1
  }
}