Pith Number

pith:5HEQS2SL

pith:2019:5HEQS2SL5H4KMFY767KMUZ3B5T

not attested not anchored not stored refs pending

An integrated cryogenic optical modulator

Andy Hart, Antonio A. Gentile, Daniele Caimi, Felix Eltes, Gerardo E. Villarreal-Garcia, Graham D. Marshall, Heinz Siegwart, Jean Fompeyrine, Jorge Barreto, Mark G. Thompson, Pascal Stark, Stefan Abel

arxiv:1904.10902 v1 · 2019-04-24 · physics.app-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5HEQS2SL5H4KMFY767KMUZ3B5T}

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	2026-05-17T23:47:49.759566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9c9096a4be9f8a6171ff7d4ca6761ecd686430c9a646e0c1d5b52f947d69e1f

Aliases

arxiv: 1904.10902 · arxiv_version: 1904.10902v1 · doi: 10.48550/arxiv.1904.10902 · pith_short_12: 5HEQS2SL5H4K · pith_short_16: 5HEQS2SL5H4KMFY7 · pith_short_8: 5HEQS2SL

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/5HEQS2SL5H4KMFY767KMUZ3B5T \
  | 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: e9c9096a4be9f8a6171ff7d4ca6761ecd686430c9a646e0c1d5b52f947d69e1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1081dff6b29b382ff15540d5b89e4217812d9a514853bb3b49672f96531932d2",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2019-04-24T16:10:30Z",
    "title_canon_sha256": "3f2a253e35976f8a331227ea21ae2bd3a192316adc56a6f51ebb22b020c1ce87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10902",
    "kind": "arxiv",
    "version": 1
  }
}