Pith Number

pith:RWR7UK53

pith:2006:RWR7UK53XG3I22IROA6NZZASZL

not attested not anchored not stored refs pending

The source of variable optical emission is localized in the jet of the radio galaxy 3C 390.3

Alla I. Shapovalova, Andrei P. Lobanov, J.Anton Zensus, Tigran G. Arshakian, Vahram H. Chavushyan

arxiv:astro-ph/0602016 v1 · 2006-02-01 · 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{RWR7UK53XG3I22IROA6NZZASZL}

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	2026-05-18T01:40:32.535478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8da3fa2bbbb9b68d6911703cdce412cad8d3113e04809589f0f0e601c67bec2d

Aliases

arxiv: astro-ph/0602016 · arxiv_version: astro-ph/0602016v1 · doi: 10.48550/arxiv.astro-ph/0602016 · pith_short_12: RWR7UK53XG3I · pith_short_16: RWR7UK53XG3I22IR · pith_short_8: RWR7UK53

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/RWR7UK53XG3I22IROA6NZZASZL \
  | 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: 8da3fa2bbbb9b68d6911703cdce412cad8d3113e04809589f0f0e601c67bec2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1b70d75aec057af8652bc86e39f8286599cde943a7430b53643d958943b5c63",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-02-01T11:15:33Z",
    "title_canon_sha256": "f2e3e16281bf4cdf25a4d251b5aed2f068b225e2ca8c5a885be0568e130b5783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0602016",
    "kind": "arxiv",
    "version": 1
  }
}