Pith Number

pith:IV73XZUD

pith:2009:IV73XZUDYCUUYZLQP37IGE5FRH

not attested not anchored not stored refs pending

VLBA polarimetric observations of the CSS quasar 3C147

A. Rossetti, C.J. Salter, D. Dallacasa, D.J. Saikia, F. Mantovani, W. Junor

arxiv:0910.2146 v1 · 2009-10-12 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IV73XZUDYCUUYZLQP37IGE5FRH}

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	2026-05-18T02:34:19.246235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

457fbbe683c0a94c65707efe8313a589d8bcb7affc83c37460780402a5c5c4a7

Aliases

arxiv: 0910.2146 · arxiv_version: 0910.2146v1 · doi: 10.48550/arxiv.0910.2146 · pith_short_12: IV73XZUDYCUU · pith_short_16: IV73XZUDYCUUYZLQ · pith_short_8: IV73XZUD

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/IV73XZUDYCUUYZLQP37IGE5FRH \
  | 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: 457fbbe683c0a94c65707efe8313a589d8bcb7affc83c37460780402a5c5c4a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28eabe09f96c6ac11e09809da85f1decd3f72be22f107abf32319fe62c8776f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-12T12:26:43Z",
    "title_canon_sha256": "31cd5409e4999e227ea950f2a4c88252946bb7a89507e9a673c46606626e4ea4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2146",
    "kind": "arxiv",
    "version": 1
  }
}