Pith Number

pith:M7JROWDD

pith:1995:M7JROWDDCMRUAE2GZWQV6B6AGO

not attested not anchored not stored refs pending

Radio observations of the $\gamma$-ray blazar 0528+134

E. B. Waltman, F. D. Ghigo, H. P. Reuter, H. Ungerechts, K. J. Johnston, K. Standke, M. Pohl, P. Reich, R. L. Fiedler, R. Schlickeiser, S. Britzen, T.P. Krichbaum, W. Reich

arxiv:astro-ph/9512135 v1 · 1995-12-20 · 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{M7JROWDDCMRUAE2GZWQV6B6AGO}

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	2026-07-04T14:14:40.179229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67d31758631323401346cda15f07c033840d922c9f5cde6f6130246ef6eb684a

Aliases

arxiv: astro-ph/9512135 · arxiv_version: astro-ph/9512135v1 · doi: 10.48550/arxiv.astro-ph/9512135 · pith_short_12: M7JROWDDCMRU · pith_short_16: M7JROWDDCMRUAE2G · pith_short_8: M7JROWDD

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/M7JROWDDCMRUAE2GZWQV6B6AGO \
  | 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: 67d31758631323401346cda15f07c033840d922c9f5cde6f6130246ef6eb684a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9863508023376dcb023f8bcc8d2520fbab431ad5d301460383068ba65c274f59",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-12-20T08:50:23Z",
    "title_canon_sha256": "684d87504792d2bd76a460bad235410cd72bc2054039ca15b041ffa7b2532945"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9512135",
    "kind": "arxiv",
    "version": 1
  }
}