Pith Number

pith:42LXIEEN

pith:2019:42LXIEEN77PGIEQ775FD2JFOG5

not attested not anchored not stored refs pending

The gravitational redshift monitored with RadioAstron from near Earth up to 350,000 km

2), (2) South African Radio Astronomy Observatory, (3) Keldysh Institute for Applied Mathematics, (4) Sternberg Astronomical Institute, 5, (5) Astro Space Center, 6), (6) Bauman Moscow State Technical University, (7) Joint Institute for VLBI ERIC, 8), (8) Delft University of Technology), D. A. Litvinov (4, D. Dirkx (8) ((1) York University, G. Granato (8), L. I. Gurvits (7, M. F. Bietenholz (1, M. V. Zakhvatkin (3), N. Bartel (1), N. V. Nunes (1), V. N. Rudenko (4)

arxiv:1904.01060 v1 · 2019-04-01 · gr-qc · 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{42LXIEEN77PGIEQ775FD2JFOG5}

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	2026-05-17T23:49:38.000164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e69774108dffde64121fff4a3d24ae374dc914259a2de590e61e70b0f3c48bca

Aliases

arxiv: 1904.01060 · arxiv_version: 1904.01060v1 · doi: 10.48550/arxiv.1904.01060 · pith_short_12: 42LXIEEN77PG · pith_short_16: 42LXIEEN77PGIEQ7 · pith_short_8: 42LXIEEN

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/42LXIEEN77PGIEQ775FD2JFOG5 \
  | 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: e69774108dffde64121fff4a3d24ae374dc914259a2de590e61e70b0f3c48bca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cca3d60cf4941e2ae01aed8f3ab594b56290f49dcae6cd8f25ad64ccec74fc4d",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-04-01T18:35:28Z",
    "title_canon_sha256": "44b7900cab286f474ab20260e3b6f9ec19c3e3f8512968c3ea5da106d051df2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01060",
    "kind": "arxiv",
    "version": 1
  }
}