Pith Number

pith:BH5VCQHE

pith:2004:BH5VCQHEXZYWQUJXMVPWZTVEFA

not attested not anchored not stored refs pending

A New Family of Light Beams and Mirror Shapes for Future LIGO Interferometers

Kip S. Thorne (California Institute of Technology), Mihai Bondarescu

arxiv:gr-qc/0409083 v1 · 2004-09-22 · 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{BH5VCQHEXZYWQUJXMVPWZTVEFA}

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	2026-05-18T01:39:22.462811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09fb5140e4be71685137655f6ccea42820654383be6b0b4be6a4a56b68bc7c70

Aliases

arxiv: gr-qc/0409083 · arxiv_version: gr-qc/0409083v1 · doi: 10.48550/arxiv.gr-qc/0409083 · pith_short_12: BH5VCQHEXZYW · pith_short_16: BH5VCQHEXZYWQUJX · pith_short_8: BH5VCQHE

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/BH5VCQHEXZYWQUJXMVPWZTVEFA \
  | 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: 09fb5140e4be71685137655f6ccea42820654383be6b0b4be6a4a56b68bc7c70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e04150efbeec9790da2c3ce5724b2cd811cf27606ed9c0ab12b4212935aedd2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-09-22T17:34:37Z",
    "title_canon_sha256": "73293e2ddf778f06c4154d528fec035cac154591ef7c1c668e1f08d34936e529"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0409083",
    "kind": "arxiv",
    "version": 1
  }
}