Pith Number

pith:PFH24OYD

pith:2010:PFH24OYDEUGNB5TQKEG6KZFF5A

not attested not anchored not stored refs pending

RXJ 0921+4529: a binary quasar or gravitational lens?

A. V. Moiseev, D. Ili\'c, E. Mediavilla, J. Kova\v{c}evi\'c, J. Mu\~noz, L. \v{C}. Popovi\'c, P. Jovanovi\'c

arxiv:1008.4156 v1 · 2010-08-24 · 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{PFH24OYDEUGNB5TQKEG6KZFF5A}

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	2026-05-18T01:09:23.628527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

794fae3b03250cd0f670510de564a5e8230f6e9be10558cf52f1d96e5fa86413

Aliases

arxiv: 1008.4156 · arxiv_version: 1008.4156v1 · doi: 10.48550/arxiv.1008.4156 · pith_short_12: PFH24OYDEUGN · pith_short_16: PFH24OYDEUGNB5TQ · pith_short_8: PFH24OYD

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/PFH24OYDEUGNB5TQKEG6KZFF5A \
  | 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: 794fae3b03250cd0f670510de564a5e8230f6e9be10558cf52f1d96e5fa86413

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abc21a3e0d18de8c8687828c3d1b14c58aabf859ee4c1a2ab3f6fa8d0c75e878",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-08-24T21:27:03Z",
    "title_canon_sha256": "f578420650f1f9f528ef0e8a2d461732e47235622d9c1de22125f5ca7dab733b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4156",
    "kind": "arxiv",
    "version": 1
  }
}