Pith Number

pith:ZLSGED6H

pith:1998:ZLSGED6HSKQ7A2MWGXEGWC2LZF

not attested not anchored not stored refs pending

The Broad Line Radio Galaxy J2114+820

G. Giovannini, I. Marquez, J. M. Marcaide, L. Feretti, L. Lara, T. Venturi, W. D. Cotton

arxiv:astro-ph/9812254 v1 · 1998-12-14 · 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{ZLSGED6HSKQ7A2MWGXEGWC2LZF}

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	2026-07-04T16:07:22.118130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cae4620fc792a1f0699635c86b0b4bc94fc06e381561066c8d37849f20683cdd

Aliases

arxiv: astro-ph/9812254 · arxiv_version: astro-ph/9812254v1 · doi: 10.48550/arxiv.astro-ph/9812254 · pith_short_12: ZLSGED6HSKQ7 · pith_short_16: ZLSGED6HSKQ7A2MW · pith_short_8: ZLSGED6H

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/ZLSGED6HSKQ7A2MWGXEGWC2LZF \
  | 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: cae4620fc792a1f0699635c86b0b4bc94fc06e381561066c8d37849f20683cdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e45bea68cb80c66904e7ea8c8a03df08dd42d51ab572dacff5a57a1ca74accc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-14T09:07:18Z",
    "title_canon_sha256": "1fd69f9f812a84946ea16467830d09a8744981f2c218dad93284c6e02a24d7ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812254",
    "kind": "arxiv",
    "version": 1
  }
}