Pith Number

pith:6UFSWVRP

pith:2011:6UFSWVRP2BG6TPGBKGTXLSE3M5

not attested not anchored not stored refs pending

3C84, BL Lac. Earth based VLBI test for the RADIOASTRON project

Andrew Lobanov, Andrey Chibisov, Andrey Chuprikov, Dave Graham, Gabriele Giovannini, Igor Guirin, Vladimir Kostenko, Yuri Kovalev

arxiv:1101.2782 v1 · 2011-01-14 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6UFSWVRP2BG6TPGBKGTXLSE3M5}

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	2026-05-18T04:31:31.763595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f50b2b562fd04de9bcc151a775c89b67605e802983842b4ca650f84307fbe123

Aliases

arxiv: 1101.2782 · arxiv_version: 1101.2782v1 · doi: 10.48550/arxiv.1101.2782 · pith_short_12: 6UFSWVRP2BG6 · pith_short_16: 6UFSWVRP2BG6TPGB · pith_short_8: 6UFSWVRP

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/6UFSWVRP2BG6TPGBKGTXLSE3M5 \
  | 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: f50b2b562fd04de9bcc151a775c89b67605e802983842b4ca650f84307fbe123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f40164de1da8738ca10bb8611dfb087487c486d64b390bc70861f61a62eea84d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-01-14T12:25:37Z",
    "title_canon_sha256": "c3d69de23edd429eb986aa30778d44174a0b74b41cb6d46e8890baeb94fea0ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2782",
    "kind": "arxiv",
    "version": 1
  }
}