Pith Number

pith:6Y6EZHA2

pith:2010:6Y6EZHA2KC2CWJHWHCQHQ3YB3D

not attested not anchored not stored refs pending

Identification of (high-redshift) AGN with WFXT: lessons from COSMOS and CDFS

Andrea Comastri (INAF-OABo), Bologna), Cristian Vignali (Dipartimento di Astronomia, Fabrizio Fiore (INAF-OARoma), Francesca Civano (CfA), Marcella Brusa (MPE), Roberto Gilli (INAF-OABo)

arxiv:1008.1914 v2 · 2010-08-11 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6Y6EZHA2KC2CWJHWHCQHQ3YB3D}

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	2026-05-18T04:38:07.690115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f63c4c9c1a50b42b24f638a0786f01d8fd4686904c7755342fa5016acf026fa4

Aliases

arxiv: 1008.1914 · arxiv_version: 1008.1914v2 · doi: 10.48550/arxiv.1008.1914 · pith_short_12: 6Y6EZHA2KC2C · pith_short_16: 6Y6EZHA2KC2CWJHW · pith_short_8: 6Y6EZHA2

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/6Y6EZHA2KC2CWJHWHCQHQ3YB3D \
  | 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: f63c4c9c1a50b42b24f638a0786f01d8fd4686904c7755342fa5016acf026fa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5b7b9d6cd21277149ea6664ae6216f844c1d525bd172278dc7ab828949332a9",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-08-11T14:19:04Z",
    "title_canon_sha256": "1d06ceb18126e1ddc6e74908a9088d25b7d61a3e19501407a19cee9cb030aed6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1914",
    "kind": "arxiv",
    "version": 2
  }
}