Pith Number

pith:VEGND7ZI

pith:2015:VEGND7ZI4VHUTPX2JRWRWMS2CQ

not attested not anchored not stored refs pending

ALMA and VLA measurements of frequency-dependent time lags in Sagittarius A*: evidence for a relativistic outflow

Alison Peck, Andreas Brunthaler, Anthony P. Rushton, Casey J. Law, Charles Gammie, Christiaan D. Brinkerink, C. M. Violette Impellizzeri, Denis Barkats, Geoffrey C. Bower, Heino Falcke, Karl M. Menten, Melvyn Wright, Monika Moscibrodzka, Reinhold Schaaf, Sera Markoff

arxiv:1502.03423 v2 · 2015-02-11 · 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{VEGND7ZI4VHUTPX2JRWRWMS2CQ}

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	2026-05-18T02:20:30.127141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a90cd1ff28e54f49befa4c6d1b325a140c991a62330a1cb7d35e66fd2d26a458

Aliases

arxiv: 1502.03423 · arxiv_version: 1502.03423v2 · doi: 10.48550/arxiv.1502.03423 · pith_short_12: VEGND7ZI4VHU · pith_short_16: VEGND7ZI4VHUTPX2 · pith_short_8: VEGND7ZI

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/VEGND7ZI4VHUTPX2JRWRWMS2CQ \
  | 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: a90cd1ff28e54f49befa4c6d1b325a140c991a62330a1cb7d35e66fd2d26a458

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a854c56ab4b7701397dd88f6e62175872b5c112d30e5e762b2d0f072effac18a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-11T20:11:54Z",
    "title_canon_sha256": "df3f782931f0451b9301a894a247816fbaba5ed350d26b4bf84ce7aaa860c958"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03423",
    "kind": "arxiv",
    "version": 2
  }
}