Pith Number

pith:R26GRKQU

pith:2012:R26GRKQUT77AMBQK3XWVIQVLAE

not attested not anchored not stored refs pending

VLBA monitoring of Mrk 421 at 15 and 24 GHz during 2011

A. Marscher, B. Cotton, D. Paneque, G. Giovannini, G. Piner, K. Sokolovsky, L. Fuhrmann, M. A. Perez-Torres, M. Giroletti, M. Kino, M. Orienti, P. Edwards, R. Lico (INAF/IRA, S. Jorstad, T. Krichbaum, UniBo), Y. Kovalev

arxiv:1205.0418 v1 · 2012-05-02 · astro-ph.HE · 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{R26GRKQUT77AMBQK3XWVIQVLAE}

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	2026-05-18T03:56:34.592015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ebc68aa149ffe06060added5442ab013355a45198514ff7cd678786b27c8320

Aliases

arxiv: 1205.0418 · arxiv_version: 1205.0418v1 · doi: 10.48550/arxiv.1205.0418 · pith_short_12: R26GRKQUT77A · pith_short_16: R26GRKQUT77AMBQK · pith_short_8: R26GRKQU

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/R26GRKQUT77AMBQK3XWVIQVLAE \
  | 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: 8ebc68aa149ffe06060added5442ab013355a45198514ff7cd678786b27c8320

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "961d8a7823e832ff804c4a26cec7496e84e1bae28439f46693c7324d93236edd",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-05-02T13:16:52Z",
    "title_canon_sha256": "bdb5772bcfef130283e24bd044f387ec49c321f400206432a1d5d742d400bab7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0418",
    "kind": "arxiv",
    "version": 1
  }
}