Pith Number

pith:ATPKOZ4R

pith:2009:ATPKOZ4RVEFZ2SUEX344CRR4OV

not attested not anchored not stored refs pending

QND measurements for future gravitational-wave detectors

Farid Ya. Khalili, Helge M\"uller-Ebhardt, Stefan L. Danilishin, Yanbei Chen

arxiv:0910.0319 v2 · 2009-10-02 · 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{ATPKOZ4RVEFZ2SUEX344CRR4OV}

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	2026-05-18T04:30:36.960099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04dea76791a90b9d4a84bef9c1463c75428305e8192b229ab5edf5a841a8ca52

Aliases

arxiv: 0910.0319 · arxiv_version: 0910.0319v2 · doi: 10.48550/arxiv.0910.0319 · pith_short_12: ATPKOZ4RVEFZ · pith_short_16: ATPKOZ4RVEFZ2SUE · pith_short_8: ATPKOZ4R

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/ATPKOZ4RVEFZ2SUEX344CRR4OV \
  | 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: 04dea76791a90b9d4a84bef9c1463c75428305e8192b229ab5edf5a841a8ca52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e04dd146289170216abd848949228a739fcf1189d178559c38180507e45b4336",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-10-02T03:47:39Z",
    "title_canon_sha256": "d7f319d3791f03e8300936080d578c60c7846c10d14374660387fcc22212cc22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0319",
    "kind": "arxiv",
    "version": 2
  }
}