Pith Number

pith:3QDPLNEK

pith:2015:3QDPLNEKH2ZA34CAIZOMJZ7MV7

not attested not anchored not stored refs pending

Gravitational Redshift Experiment with the Space Radio Telescope RadioAstron

A. Biriukov, A. Fionov, A. Gusev, A. Kovalenko, D. Litvinov, K. Belousov, M. Bietenholz, N. Bartel, N. Poraiko, V. Kauts, V. Kulagin, V. Rudenko

arxiv:1503.03641 v1 · 2015-03-12 · gr-qc · astro-ph.IM · physics.space-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{3QDPLNEKH2ZA34CAIZOMJZ7MV7}

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	2026-05-18T02:24:27.760345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc06f5b48a3eb20df040465cc4e7ecafd0ccc63de6861cc57c3ee22c802dc719

Aliases

arxiv: 1503.03641 · arxiv_version: 1503.03641v1 · doi: 10.48550/arxiv.1503.03641 · pith_short_12: 3QDPLNEKH2ZA · pith_short_16: 3QDPLNEKH2ZA34CA · pith_short_8: 3QDPLNEK

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/3QDPLNEKH2ZA34CAIZOMJZ7MV7 \
  | 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: dc06f5b48a3eb20df040465cc4e7ecafd0ccc63de6861cc57c3ee22c802dc719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afa5b49cce081ac7e8fe2df999113180a9f6cd54a06a93a721cc20f61e589fd3",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-03-12T09:27:44Z",
    "title_canon_sha256": "a6ec0a5ceb031f24411c65b80efd825903d3bbb3d3daf2e5bfb6aa3f04d7989f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03641",
    "kind": "arxiv",
    "version": 1
  }
}