Pith Number

pith:7JVBLVC7

pith:2015:7JVBLVC7NZQIPFNMHWDSOAISNW

not attested not anchored not stored refs pending

Testing the universality of free fall with rubidium and ytterbium in a very large baseline atom interferometer

Christian Schubert, Dennis Schlippert, Ernst M. Rasel, Holger Ahlers, Jonas Hartwig, Katerine Posso-Trujillo, Naceur Gaaloul, Sven Abend, Wolfgang Ertmer

arxiv:1503.01213 v1 · 2015-03-04 · physics.atom-ph · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JVBLVC7NZQIPFNMHWDSOAISNW}

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	2026-05-18T02:20:02.631663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa6a15d45f6e608795ac3d872701126d89e79dbffcf81112500761a40e9d90dc

Aliases

arxiv: 1503.01213 · arxiv_version: 1503.01213v1 · doi: 10.48550/arxiv.1503.01213 · pith_short_12: 7JVBLVC7NZQI · pith_short_16: 7JVBLVC7NZQIPFNM · pith_short_8: 7JVBLVC7

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/7JVBLVC7NZQIPFNMHWDSOAISNW \
  | 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: fa6a15d45f6e608795ac3d872701126d89e79dbffcf81112500761a40e9d90dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dc365cd0820160f36851650e7d07b885015c6f9140fb465dc9c5a8d4d190c21",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-03-04T04:06:25Z",
    "title_canon_sha256": "9ad6b3295b68632499e49f649824afc27980806765aa5c453bc52732fc75c76e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01213",
    "kind": "arxiv",
    "version": 1
  }
}