Pith Number

pith:3VIDFXD2

pith:2011:3VIDFXD2XSCS7MG3CJXQFBVC7X

not attested not anchored not stored refs pending

Dual-frequency VLBI study of Centaurus A on sub-parsec scales

C. M. Fromm, Cornelia M\"uller, C. Pl\"otz, E. Ros, G. B. Taylor, H. Hase, J. A. Zensus, J. E. J. Lovell, J. Wilms, M. B\"ock, M. Kadler, P. G. Edwards, R. E. Rothschild, R. Ojha, S. Horiuchi, S. J. Tingay, S. Richers, T. Pursimo, U. Katz

arxiv:1104.0804 v1 · 2011-04-05 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3VIDFXD2XSCS7MG3CJXQFBVC7X}

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	2026-05-18T02:02:37.963862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd5032dc7abc852fb0db126f0286a2fdd27e6475bce2e7bdbb2ec00ee923323d

Aliases

arxiv: 1104.0804 · arxiv_version: 1104.0804v1 · doi: 10.48550/arxiv.1104.0804 · pith_short_12: 3VIDFXD2XSCS · pith_short_16: 3VIDFXD2XSCS7MG3 · pith_short_8: 3VIDFXD2

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/3VIDFXD2XSCS7MG3CJXQFBVC7X \
  | 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: dd5032dc7abc852fb0db126f0286a2fdd27e6475bce2e7bdbb2ec00ee923323d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e5dcc97f9e3334eff8328c78ab1b4c77c28e3507c9d769fb4c4507a53cdd205",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-04-05T10:35:31Z",
    "title_canon_sha256": "2b2eeefe2a0d705eb4d98aeeca92bc227e40ada9ec82023c4afb2e5787c26a13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.0804",
    "kind": "arxiv",
    "version": 1
  }
}