Pith Number

pith:4SS6CL6O

pith:2010:4SS6CL6ORNWCSBTTKUTRIYARCO

not attested not anchored not stored refs pending

Ultra-low vibration pulse-tube cryocooler stabilized cryogenic sapphire oscillator with 10^-16 fractional frequency stability

John G. Hartnett, Nitin R. Nand

arxiv:1004.2886 v2 · 2010-04-16 · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4SS6CL6ORNWCSBTTKUTRIYARCO}

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	2026-05-18T04:31:51.131133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4a5e12fce8b6c290673552714601113a3f983fffb9c405a82f314885f6a6e35

Aliases

arxiv: 1004.2886 · arxiv_version: 1004.2886v2 · doi: 10.48550/arxiv.1004.2886 · pith_short_12: 4SS6CL6ORNWC · pith_short_16: 4SS6CL6ORNWCSBTT · pith_short_8: 4SS6CL6O

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/4SS6CL6ORNWCSBTTKUTRIYARCO \
  | 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: e4a5e12fce8b6c290673552714601113a3f983fffb9c405a82f314885f6a6e35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "350f2862e35fb00666f34ad6a5513109fc2faaf5b298a795ec990a2ccee27d6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2010-04-16T17:07:28Z",
    "title_canon_sha256": "88c7c71e624a53c21fb1c58bbb99eed19041ffda3c575995942d80d322ba1542"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2886",
    "kind": "arxiv",
    "version": 2
  }
}