Pith Number

pith:HQNXRFJ2

pith:2009:HQNXRFJ2QOKPF7W45H234GY7QV

not attested not anchored not stored refs pending

Star formation in galaxies hosting Active Galactic Nuclei up to z~1

John D. Silverman, XMMCOSMOS Collaboration, zCOSMOS Collaboration

arxiv:0912.1160 v1 · 2009-12-07 · 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{HQNXRFJ2QOKPF7W45H234GY7QV}

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	2026-05-18T02:10:26.085271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c1b78953a8394f2fedce9f5be1b1f856858f4e1a7f5d2fac7747388806b9873

Aliases

arxiv: 0912.1160 · arxiv_version: 0912.1160v1 · doi: 10.48550/arxiv.0912.1160 · pith_short_12: HQNXRFJ2QOKP · pith_short_16: HQNXRFJ2QOKPF7W4 · pith_short_8: HQNXRFJ2

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/HQNXRFJ2QOKPF7W45H234GY7QV \
  | 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: 3c1b78953a8394f2fedce9f5be1b1f856858f4e1a7f5d2fac7747388806b9873

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27e1e2949b63da2dd215e24aa8d1bb905cb5ea66108f7749499956234e851629",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-07T03:21:12Z",
    "title_canon_sha256": "15e76baf8d3e7e33b8ed4cd2ac100cfae4977954809c0accde76a5d5d36f886f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1160",
    "kind": "arxiv",
    "version": 1
  }
}