Pith Number

pith:G75Q7KYH

pith:2010:G75Q7KYHTSJP3CQYPSJAY4CTXK

not attested not anchored not stored refs pending

The optical spectra of X-shaped radio galaxies

(2) NASA Goddard Space Flight Center, 3), (3) NRL, (4) Stanford University), Chi C. Cheung (2, Hermine Landt (1), Stephen E. Healey (4) ((1) University of Melbourne

arxiv:1006.2179 v1 · 2010-06-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G75Q7KYHTSJP3CQYPSJAY4CTXK}

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	2026-05-18T02:06:54.826844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37fb0fab079c92fd8a187c920c7053ba8ca77e261fc1e4c9e12486d9b97908c2

Aliases

arxiv: 1006.2179 · arxiv_version: 1006.2179v1 · doi: 10.48550/arxiv.1006.2179 · pith_short_12: G75Q7KYHTSJP · pith_short_16: G75Q7KYHTSJP3CQY · pith_short_8: G75Q7KYH

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/G75Q7KYHTSJP3CQYPSJAY4CTXK \
  | 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: 37fb0fab079c92fd8a187c920c7053ba8ca77e261fc1e4c9e12486d9b97908c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50181e1bb7a2c9ea06940d6e075a08b9d9d0f96c66e82483bd1e9572ac49541f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-06-11T00:57:46Z",
    "title_canon_sha256": "99e9995b670ba1bbe146c7374c1a2fd4741184c3e47a11a23afec6d1802b3b2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2179",
    "kind": "arxiv",
    "version": 1
  }
}