Pith Number

pith:NTES2JWJ

pith:2000:NTES2JWJRV677IPZUFMU6OHXPZ

not attested not anchored not stored refs pending

The giant radio galaxy 8C0821+695 and its environment

G. Giovannini, K.-H. Mack, L. Feretti, L. Lara, M. Lacy, M. Murgia, U. Klein, W.D. Cotton

arxiv:astro-ph/0002009 v1 · 2000-02-01 · 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{NTES2JWJRV677IPZUFMU6OHXPZ}

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	2026-07-04T14:10:08.856948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cc92d26c98d7dffa1f9a1594f38f77e6b65b5090f90844f9d27be4a66aacf1b

Aliases

arxiv: astro-ph/0002009 · arxiv_version: astro-ph/0002009v1 · doi: 10.48550/arxiv.astro-ph/0002009 · pith_short_12: NTES2JWJRV67 · pith_short_16: NTES2JWJRV677IPZ · pith_short_8: NTES2JWJ

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/NTES2JWJRV677IPZUFMU6OHXPZ \
  | 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: 6cc92d26c98d7dffa1f9a1594f38f77e6b65b5090f90844f9d27be4a66aacf1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15440c33f0beb053fcf2e9df5f843f5c453f1c6d5cc6c1ced1d308fb4ebca607",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-01T08:22:56Z",
    "title_canon_sha256": "a219a59435988aefab86db4dd9d85dc1b2f1cef9dec211622c7eab7c3e85b2cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002009",
    "kind": "arxiv",
    "version": 1
  }
}