Pith Number

pith:LNQACQ4L

pith:2000:LNQACQ4LX2S7OPQPH42ZEBQXVP

not attested not anchored not stored refs pending

The Velocity of Gravitational Waves

Luciane R. de Freitas, M. Novello, O.D. Aguiar, V.A.De Lorenci

arxiv:gr-qc/0002093 v1 · 2000-02-28 · 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{LNQACQ4LX2S7OPQPH42ZEBQXVP}

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	2026-05-18T04:35:35.455392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b6001438bbea5f73e0f3f35920617abcbdedebf9d29209a2efd3b992c798b39

Aliases

arxiv: gr-qc/0002093 · arxiv_version: gr-qc/0002093v1 · doi: 10.48550/arxiv.gr-qc/0002093 · pith_short_12: LNQACQ4LX2S7 · pith_short_16: LNQACQ4LX2S7OPQP · pith_short_8: LNQACQ4L

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/LNQACQ4LX2S7OPQPH42ZEBQXVP \
  | 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: 5b6001438bbea5f73e0f3f35920617abcbdedebf9d29209a2efd3b992c798b39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5956f36d6af50b5163b69ea0d09362c275457eb4ac6fbc71ab3b39b4d2103de",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2000-02-28T18:59:40Z",
    "title_canon_sha256": "958db4aef7422be9d6d9a05924eb73bad022b595526f5fa06cc0a006f8f56134"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0002093",
    "kind": "arxiv",
    "version": 1
  }
}