Pith Number

pith:KRNFWNX2

pith:2006:KRNFWNX2LZHONWTFY4C25V6P2G

not attested not anchored not stored refs pending

Deep spectroscopy of 9C J1503+4528: a very young CSS radio source at z=0.521

A.C.S. Readhead, C. Chandler, D. Lee, E.M. Waldram, Garret Cotter, G. Pooley, J.M. Riley, K.J. Inskip, R.C. Bolton, T.J. Pearson

arxiv:astro-ph/0605460 v2 · 2006-05-18 · 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{KRNFWNX2LZHONWTFY4C25V6P2G}

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	2026-07-04T16:58:45.406132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

545a5b36fa5e4ee6da65c705aed7cfd1a86746543cd11d22c3497107dfa12fe9

Aliases

arxiv: astro-ph/0605460 · arxiv_version: astro-ph/0605460v2 · doi: 10.48550/arxiv.astro-ph/0605460 · pith_short_12: KRNFWNX2LZHO · pith_short_16: KRNFWNX2LZHONWTF · pith_short_8: KRNFWNX2

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/KRNFWNX2LZHONWTFY4C25V6P2G \
  | 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: 545a5b36fa5e4ee6da65c705aed7cfd1a86746543cd11d22c3497107dfa12fe9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fa34ce65067920e549c8fcdf6d040c84b2b14d0b30334d0eef11ed740b0dd64",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-05-18T15:44:09Z",
    "title_canon_sha256": "63f8f63dd84f87f001062c6808c7c943a0f9bd28bd1f9a1b759f9ccc180e3430"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0605460",
    "kind": "arxiv",
    "version": 2
  }
}