Pith Number

pith:OUNZN7C2

pith:2007:OUNZN7C2WI2VN47TNB4TFUOHYB

not attested not anchored not stored refs pending

The nuclear to host galaxy relation of high redshift quasars

A. Treves (3), Como, Finland (2) Osservatorio Astronomico di Padova, Italy), Italy (3) Universita` dell'Insubria, Italy (4) INAF-IASF Milano, J.K. Kotilainen (1), M. Labita (3), M. Uslenghi (4) ((1) Tuorla Observatory, R. Falomo (2), University of Turku

arxiv:astro-ph/0701417 v1 · 2007-01-15 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OUNZN7C2WI2VN47TNB4TFUOHYB}

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	2026-05-18T04:29:07.268347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

751b96fc5ab23556f3f3687932d1c7c063bd2014160a362639c78e5b437dab4c

Aliases

arxiv: astro-ph/0701417 · arxiv_version: astro-ph/0701417v1 · doi: 10.48550/arxiv.astro-ph/0701417 · pith_short_12: OUNZN7C2WI2V · pith_short_16: OUNZN7C2WI2VN47T · pith_short_8: OUNZN7C2

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/OUNZN7C2WI2VN47TNB4TFUOHYB \
  | 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: 751b96fc5ab23556f3f3687932d1c7c063bd2014160a362639c78e5b437dab4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1680ab1649390ed11ed5819c48c91a75b588105cd129e99adf5f94ceb4fef21f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-15T13:08:56Z",
    "title_canon_sha256": "fcd3faee1bc487a6bcc176d1226cbebc0bb20b04b411be64d6b1a0cc98c09071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701417",
    "kind": "arxiv",
    "version": 1
  }
}