Pith Number

pith:G7QZJUDY

pith:2004:G7QZJUDYZV5K6NJUUTU4HLTHXB

not attested not anchored not stored refs pending

Sub-milliarcsecond Imaging of Quasars and Active Galactic Nuclei III. Kinematics of Parsec-Scale Radio Jets

ASC LPI), D. C. Homan (NRAO, Denison U.), E. Ros (MPIfR), J. A. Zensus (MPIfR, K. I. Kellermann (NRAO), M. H. Cohen (Caltech), M. Kadler (MPIfR), M. L. Lister (NRAO, NRAO), Purdue U.), R. C. Vermeulen (ASTRON), Y. Y. Kovalev (NRAO

arxiv:astro-ph/0403320 v1 · 2004-03-13 · 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{G7QZJUDYZV5K6NJUUTU4HLTHXB}

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	2026-07-04T14:13:23.252520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37e194d078cd7aaf3534a4e9c3ae67b87ba5eabedf26d53b65853fdaa4dd2aca

Aliases

arxiv: astro-ph/0403320 · arxiv_version: astro-ph/0403320v1 · doi: 10.48550/arxiv.astro-ph/0403320 · pith_short_12: G7QZJUDYZV5K · pith_short_16: G7QZJUDYZV5K6NJU · pith_short_8: G7QZJUDY

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/G7QZJUDYZV5K6NJUUTU4HLTHXB \
  | 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: 37e194d078cd7aaf3534a4e9c3ae67b87ba5eabedf26d53b65853fdaa4dd2aca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a452b700f6604942f7081d63f67e9f2230a7f93f1f17cf9998a88f7964b5b792",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-13T00:42:47Z",
    "title_canon_sha256": "b90f2a1346ef0f1403f47c95a6f0b1f25b3bb9a4ddf076dfb90d1a14e13b5ddf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0403320",
    "kind": "arxiv",
    "version": 1
  }
}