Pith Number

pith:UCIM6YC2

pith:1999:UCIM6YC2U25PHDFS3FG65UDCRV

not attested not anchored not stored refs pending

A Radio Galaxy at z=5.19

Carlos De Breuck, Dan Stern (UCB), & George Miley (Leiden), Huub Rottgering, S. A. Stanford (IGPP/LLNL), Wil van Breugel

arxiv:astro-ph/9904272 v1 · 1999-04-21 · 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{UCIM6YC2U25PHDFS3FG65UDCRV}

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.

Cited by

1 paper in Pith

The Road to Identifying the Earliest Radio-Powerful AGN with the SKA

Receipt and verification

First computed	2026-07-04T16:10:54.741452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a090cf605aa6baf38cb2d94deed0628d45e014f98feb7ed5a99a665ed134dd89

Aliases

arxiv: astro-ph/9904272 · arxiv_version: astro-ph/9904272v1 · doi: 10.48550/arxiv.astro-ph/9904272 · pith_short_12: UCIM6YC2U25P · pith_short_16: UCIM6YC2U25PHDFS · pith_short_8: UCIM6YC2

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/UCIM6YC2U25PHDFS3FG65UDCRV \
  | 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: a090cf605aa6baf38cb2d94deed0628d45e014f98feb7ed5a99a665ed134dd89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16bea88c8fcc0c04d3d9f7c62b9fa6dbe8745443585a6a4c20ac63736a182720",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-04-21T00:02:45Z",
    "title_canon_sha256": "da458f6e952b7bd53b0af47ffdbbb50dcf1c5459ff60fcae74da6016dc9014fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9904272",
    "kind": "arxiv",
    "version": 1
  }
}