Pith Number

pith:VXNQQWMM

pith:2018:VXNQQWMM2PF6AMHPK4MHNU3FPN

not attested not anchored not stored refs pending

Testing the universality of free fall towards dark matter with radio pulsars

Lijing Shao, Michael Kramer, Norbert Wex

arxiv:1805.08408 v1 · 2018-05-22 · gr-qc · astro-ph.GA · hep-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{VXNQQWMM2PF6AMHPK4MHNU3FPN}

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	2026-05-18T00:13:15.278923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

addb08598cd3cbe030ef571876d3657b571fbee2569901bd76ee063b22a35a1f

Aliases

arxiv: 1805.08408 · arxiv_version: 1805.08408v1 · doi: 10.48550/arxiv.1805.08408 · pith_short_12: VXNQQWMM2PF6 · pith_short_16: VXNQQWMM2PF6AMHP · pith_short_8: VXNQQWMM

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/VXNQQWMM2PF6AMHPK4MHNU3FPN \
  | 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: addb08598cd3cbe030ef571876d3657b571fbee2569901bd76ee063b22a35a1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3369139c44add6ac77df96eccade180b8f93e93a6efc39980d721fe4805a8840",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-22T05:57:05Z",
    "title_canon_sha256": "5160075a5a60e24f65c85a21136cb48541d5315b5cc70560887e77b350e054f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08408",
    "kind": "arxiv",
    "version": 1
  }
}