Pith Number

pith:BHTDB6I4

pith:2007:BHTDB6I4VULNXFL34FAX6PU7AP

not attested not anchored not stored refs pending

On the faint end of the high redshift AGN luminosity function

Francesco Shankar, Smita Mathur (The Ohio State University)

arxiv:astro-ph/0701515 v2 · 2007-01-18 · 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{BHTDB6I4VULNXFL34FAX6PU7AP}

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	2026-05-18T04:29:07.140568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09e630f91cad16db957be1417f3e9f03e26c53a6238e5a25b0fa2be4fdae3893

Aliases

arxiv: astro-ph/0701515 · arxiv_version: astro-ph/0701515v2 · doi: 10.48550/arxiv.astro-ph/0701515 · pith_short_12: BHTDB6I4VULN · pith_short_16: BHTDB6I4VULNXFL3 · pith_short_8: BHTDB6I4

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/BHTDB6I4VULNXFL34FAX6PU7AP \
  | 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: 09e630f91cad16db957be1417f3e9f03e26c53a6238e5a25b0fa2be4fdae3893

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bf5e30a864d9916e7016fb375204a0638a4fb7d760e3e5fd75a030d17f17c76",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-18T06:01:14Z",
    "title_canon_sha256": "40587c5a9ca44f3928178949656c34c5ff9054dc79e2f77348a6ed9d4d235d26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701515",
    "kind": "arxiv",
    "version": 2
  }
}