Pith Number

pith:YTODW6YK

pith:1997:YTODW6YKEFKJLLQ2VIVC2ETUMS

not attested not anchored not stored refs pending

High-redshift radio galaxies and quasars at sub-millimetre wavelengths: assessing their evolutionary status

David Hughes, J.S. Dunlop, Steve Rawlings (University of Oxford), (University of Edinburgh)

arxiv:astro-ph/9705094 v1 · 1997-05-13 · 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{YTODW6YKEFKJLLQ2VIVC2ETUMS}

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	2026-05-18T01:40:17.479595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4dc3b7b0a215495ae1aaa2a2d1274649ddda86f02fc8fb0dc984ca9741d35fe

Aliases

arxiv: astro-ph/9705094 · arxiv_version: astro-ph/9705094v1 · doi: 10.48550/arxiv.astro-ph/9705094 · pith_short_12: YTODW6YKEFKJ · pith_short_16: YTODW6YKEFKJLLQ2 · pith_short_8: YTODW6YK

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/YTODW6YKEFKJLLQ2VIVC2ETUMS \
  | 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: c4dc3b7b0a215495ae1aaa2a2d1274649ddda86f02fc8fb0dc984ca9741d35fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8594883f4cc11cb343830b9f7cf7a7f0c5e00f730c752807fa1f082f327cbd2f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-05-13T10:38:49Z",
    "title_canon_sha256": "29d826ac3be5be6ba4c3b71bb83cb1426f8f6f9436479cdfd981781d2c31acfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9705094",
    "kind": "arxiv",
    "version": 1
  }
}