Pith Number

pith:QUIIH34Z

pith:2018:QUIIH34ZVTZPIBK5I2SXEJYMLF

not attested not anchored not stored refs pending

Micro-arcsecond structure of Sagittarius A* revealed by high-sensitivity 86 GHz VLBI observations

Adam T. Deller, Alfredo Monta\~na, Antonio Hern\'andez-G\'omez, Christiaan D. Brinkerink, Ciriaco Goddi, Cornelia M\"uller, David H. Hughes, David Sanchez-Arguelles, Edgar Castillo, Geoffrey C. Bower, Gisela N. Ortiz-Le\'on, Grant W. Wilson, Heino D. Falcke, J. Anton Zensus, Jonathan L\'eon-Tavares, Kazunori Akiyama, Laurent Loinard, Michael Kramer, Monika Mo\'scibrodzka, Raquel Fraga-Encinas, Remo P. J. Tilanus, Sara Issaoun, Sheperd S. Doeleman, Thomas P. Krichbaum

arxiv:1811.08394 v1 · 2018-11-20 · astro-ph.GA · 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{QUIIH34ZVTZPIBK5I2SXEJYMLF}

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	2026-05-17T23:55:43.723440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

851083ef99acf2f4055d46a572270c595c31d951596e2089afd884a0675c0a3f

Aliases

arxiv: 1811.08394 · arxiv_version: 1811.08394v1 · doi: 10.48550/arxiv.1811.08394 · pith_short_12: QUIIH34ZVTZP · pith_short_16: QUIIH34ZVTZPIBK5 · pith_short_8: QUIIH34Z

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/QUIIH34ZVTZPIBK5I2SXEJYMLF \
  | 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: 851083ef99acf2f4055d46a572270c595c31d951596e2089afd884a0675c0a3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4a6d2f0e987d7ec209db3bf80aa9f533d4162d3d254c4778f2e824b248c97bb",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-20T18:05:42Z",
    "title_canon_sha256": "fb9ca4c125331dd90c892e16a05c2e3c8f2f206bfa138af3e055bb3d9cff521c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08394",
    "kind": "arxiv",
    "version": 1
  }
}