Pith Number

pith:HHTR2PPQ

pith:2011:HHTR2PPQKNNQTPG4AH7STNJ5X6

not attested not anchored not stored refs pending

Nanohertz Frequency Determination for the Gravity Probe B HF SQUID Signal

A. S. Silbergleit, D. I. Santiago, G. M. Keiser, J. E. Berberian, J. Kozaczuk, J. W. Conklin, M. Salomon, P. Worden

arxiv:1111.4521 v1 · 2011-11-19 · physics.ins-det · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HHTR2PPQKNNQTPG4AH7STNJ5X6}

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	2026-05-18T01:59:29.001677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39e71d3df0535b09bcdc01ff29b53dbfb317af301e13a26420b6df79e35c40c1

Aliases

arxiv: 1111.4521 · arxiv_version: 1111.4521v1 · doi: 10.48550/arxiv.1111.4521 · pith_short_12: HHTR2PPQKNNQ · pith_short_16: HHTR2PPQKNNQTPG4 · pith_short_8: HHTR2PPQ

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/HHTR2PPQKNNQTPG4AH7STNJ5X6 \
  | 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: 39e71d3df0535b09bcdc01ff29b53dbfb317af301e13a26420b6df79e35c40c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89dc7a979ae925fc6f67294581172b46130e5121314228b9a11ab31812114814",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2011-11-19T00:35:34Z",
    "title_canon_sha256": "6816a167f37e562affb703563a465b44a1ca7ea9908d37d71c287c80ebae5813"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4521",
    "kind": "arxiv",
    "version": 1
  }
}