Pith Number

pith:NWU6PY3J

pith:2015:NWU6PY3JWT3P4IHBHDLNOHA6NG

not attested not anchored not stored refs pending

A compact ultranarrow high-power laser system for experiments with 578nm Ytterbium clock transition

Giacomo Cappellini, Guido Pagano, Jacopo Catani, Leonardo Fallani, Marco Mancini, Marco Pizzocaro, Pietro Lombardi

arxiv:1505.01512 v2 · 2015-05-06 · physics.optics · cond-mat.quant-gas · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NWU6PY3JWT3P4IHBHDLNOHA6NG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:31:53.009515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6da9e7e369b4f6fe20e138d6d71c1e69b1e90859c48e8686c65b88cd916df0ab

Aliases

arxiv: 1505.01512 · arxiv_version: 1505.01512v2 · doi: 10.48550/arxiv.1505.01512 · pith_short_12: NWU6PY3JWT3P · pith_short_16: NWU6PY3JWT3P4IHB · pith_short_8: NWU6PY3J

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/NWU6PY3JWT3P4IHBHDLNOHA6NG \
  | 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: 6da9e7e369b4f6fe20e138d6d71c1e69b1e90859c48e8686c65b88cd916df0ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5331177ec2831f82b5146417e8cb945a6159fd3df822dfe6f348d7610b7c3507",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-05-06T20:37:20Z",
    "title_canon_sha256": "6f9299479c8e0c286f6c776f16dfb3574d1fba174f1a0a12ca0486eb3b37f02a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01512",
    "kind": "arxiv",
    "version": 2
  }
}