Pith Number

pith:GAFPE4UO

pith:2013:GAFPE4UOKJ7CVHZGCQH24SFUZX

not attested not anchored not stored refs pending

Fine-scale structure of the quasar 3C 279 Measured with 1.3 mm very long baseline interferometry

Alan P. Marscher, Christiaan Brinkerink, Daniel P. Marrone, David MacMahon, Geoffrey C. Bower, Geoffrey Crew, James M. Moran, Jonathan Weintroub, Juan C. Algaba, Kazunori Akiyama, Ken H. Young, Laurent Loinard, Lucy M. Ziurys, Makoto Inoue, Mareki Honma, Mark A. Gurwell, Matt Dexter, Melvyn Wright, Michael Titus, Nicolas Pradel, Paul T. P. Ho, Per Friberg, Remo P. J. Tilanus, Richard Chamberlin, Richard Plambeck, Robert Freund, Roger J. Cappallo, Rurik Primiani, Ru-Sen Lu, Sheperd S. Doeleman, Svetlana G. Jorstad, Thomas P. Krichbaum, Vincent L. Fish

arxiv:1305.3359 v1 · 2013-05-15 · astro-ph.HE · 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{GAFPE4UOKJ7CVHZGCQH24SFUZX}

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	2026-05-18T01:49:57.072291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

300af2728e527e2a9f26140fae48b4cdc30849902ab0e3ff7c2d26cb72241051

Aliases

arxiv: 1305.3359 · arxiv_version: 1305.3359v1 · doi: 10.48550/arxiv.1305.3359 · pith_short_12: GAFPE4UOKJ7C · pith_short_16: GAFPE4UOKJ7CVHZG · pith_short_8: GAFPE4UO

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/GAFPE4UOKJ7CVHZGCQH24SFUZX \
  | 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: 300af2728e527e2a9f26140fae48b4cdc30849902ab0e3ff7c2d26cb72241051

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a873822a8f2e76cec7a6933c871d9cec88e412f331be6402534410787725add5",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-15T05:44:25Z",
    "title_canon_sha256": "75422878051e8843d27034ff37077e503a07fe2efaee8836f2b4bc1569a6bf7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3359",
    "kind": "arxiv",
    "version": 1
  }
}