Pith Number

pith:BERXHET6

pith:2003:BERXHET67HC5O63EKNFS5P3B4H

not attested not anchored not stored refs pending

Second generation instruments for the Laser Interferometer Gravitational Wave Observatory (LIGO)

Peter Fritschel

arxiv:gr-qc/0308090 v1 · 2003-08-28 · 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{BERXHET67HC5O63EKNFS5P3B4H}

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	2026-07-04T16:40:16.351331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

092373927ef9c5d77b64534b2ebf61e1ff6916f7709577ee6464246d11146e5c

Aliases

arxiv: gr-qc/0308090 · arxiv_version: gr-qc/0308090v1 · doi: 10.48550/arxiv.gr-qc/0308090 · pith_short_12: BERXHET67HC5 · pith_short_16: BERXHET67HC5O63E · pith_short_8: BERXHET6

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/BERXHET67HC5O63EKNFS5P3B4H \
  | 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: 092373927ef9c5d77b64534b2ebf61e1ff6916f7709577ee6464246d11146e5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abbba52e594ce4dfbfb3034a1303c2fad73b3164e3b19f887b019021c184acce",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-08-28T14:44:51Z",
    "title_canon_sha256": "a02cf19acc1c01abbcfd7de852d19bdc679f0c4b1ac62ab02957c06b5747f483"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0308090",
    "kind": "arxiv",
    "version": 1
  }
}