Pith Number

pith:COIBBN4B

pith:2008:COIBBN4BZDHCTKZO25EIFKIWRJ

not attested not anchored not stored refs pending

Modeling nuclei of radio galaxies from VLBI radio observations. Application to the BL Lac Object S5 1803+784

(2) Max-Planck-Institut for Radioastronomy, 3), (3) Astronomical Institute of St.-Petersburg State University), A. Witzel (2), J. Roland (1), M. Karouzos (2) ((1) Institut d'Astrophysique, N. A. Kudryavtseva (2, S. Britzen (2)

arxiv:0805.2832 v1 · 2008-05-19 · 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{COIBBN4BZDHCTKZO25EIFKIWRJ}

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	2026-05-18T04:14:36.497217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

139010b781c8ce29ab2ed74882a9168a4e0fe490761db7abca76ab3354038e1e

Aliases

arxiv: 0805.2832 · arxiv_version: 0805.2832v1 · doi: 10.48550/arxiv.0805.2832 · pith_short_12: COIBBN4BZDHC · pith_short_16: COIBBN4BZDHCTKZO · pith_short_8: COIBBN4B

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/COIBBN4BZDHCTKZO25EIFKIWRJ \
  | 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: 139010b781c8ce29ab2ed74882a9168a4e0fe490761db7abca76ab3354038e1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff243d83f3a15d2b18f51275f797c91fd4c3c5f3f784fd947fc3ef19a9ace752",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-05-19T12:38:48Z",
    "title_canon_sha256": "eddcdb38135f86c22cf7d4a814f24bb284bdf463a93666d890bbe08521f36bb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.2832",
    "kind": "arxiv",
    "version": 1
  }
}