Pith Number

pith:KNAVR72C

pith:2000:KNAVR72CKPK7TWYL6TZCPR6XK4

not attested not anchored not stored refs pending

Jet directions in Seyfert galaxies

A. L. Kinney, C. J. Clarke, H. R. Schmitt, J. E. Pringle, J. S. Ulvestad, R. R. J. Antonucci

arxiv:astro-ph/0002131 v1 · 2000-02-06 · 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{KNAVR72CKPK7TWYL6TZCPR6XK4}

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	2026-05-18T04:33:51.151392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

534158ff4253d5f9db0bf4f227c7d75713abcdb11e04e57e95d2dc28a0946b2f

Aliases

arxiv: astro-ph/0002131 · arxiv_version: astro-ph/0002131v1 · doi: 10.48550/arxiv.astro-ph/0002131 · pith_short_12: KNAVR72CKPK7 · pith_short_16: KNAVR72CKPK7TWYL · pith_short_8: KNAVR72C

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/KNAVR72CKPK7TWYL6TZCPR6XK4 \
  | 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: 534158ff4253d5f9db0bf4f227c7d75713abcdb11e04e57e95d2dc28a0946b2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b5888af0308c673b0a74477e233fa04309902d702b20d4826919fc1c4df7a0f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-06T20:26:01Z",
    "title_canon_sha256": "b7573e8751dbc5553258d57af1a416b656e20b682aac09be4723e4f10c7e28c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002131",
    "kind": "arxiv",
    "version": 1
  }
}