Pith Number

pith:4HIMD75Z

pith:2001:4HIMD75ZS2VFK6SI2PVMBCZFDY

not attested not anchored not stored refs pending

Adaptive thermal compensation of test masses in advanced LIGO

David Shoemaker, Michael Zucker, Peter Fritschel, Phil Marfuta, Ryan Lawrence

arxiv:gr-qc/0110011 v1 · 2001-10-01 · gr-qc · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HIMD75ZS2VFK6SI2PVMBCZFDY}

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	2026-07-04T16:26:58.023122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1d0c1ffb996aa557a48d3eac08b251e31cb46190ccf641724eda02adea587c6

Aliases

arxiv: gr-qc/0110011 · arxiv_version: gr-qc/0110011v1 · doi: 10.48550/arxiv.gr-qc/0110011 · pith_short_12: 4HIMD75ZS2VF · pith_short_16: 4HIMD75ZS2VFK6SI · pith_short_8: 4HIMD75Z

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/4HIMD75ZS2VFK6SI2PVMBCZFDY \
  | 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: e1d0c1ffb996aa557a48d3eac08b251e31cb46190ccf641724eda02adea587c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9c42acf6b8b935456a1cbaaa4fb6a27489b37003a6ee342067bd06f0572e23f",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-10-01T18:21:32Z",
    "title_canon_sha256": "6d8ef382b7a04ca272ee568b0a948bf95864ae70f550f1c13ea4654fd6269802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0110011",
    "kind": "arxiv",
    "version": 1
  }
}