Pith Number

pith:MVNQYK5P

pith:2018:MVNQYK5P5GCIHDKAL6Q22MBXJT

not attested not anchored not stored refs pending

Higher dispersion and efficiency Bragg gratings for optical spectroscopy

Kai Zhang, Thomas Fl\"ugel-Paul, Will Saunders

arxiv:1807.08975 v1 · 2018-07-24 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MVNQYK5P5GCIHDKAL6Q22MBXJT}

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	2026-05-18T00:09:57.192325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

655b0c2bafe984838d405fa1ad30374ce737cc6f4970296ba8204ed4f0d6773d

Aliases

arxiv: 1807.08975 · arxiv_version: 1807.08975v1 · doi: 10.48550/arxiv.1807.08975 · pith_short_12: MVNQYK5P5GCI · pith_short_16: MVNQYK5P5GCIHDKA · pith_short_8: MVNQYK5P

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/MVNQYK5P5GCIHDKAL6Q22MBXJT \
  | 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: 655b0c2bafe984838d405fa1ad30374ce737cc6f4970296ba8204ed4f0d6773d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a2ff887ee1f01db026295b0b0fa6a6388d616eec7374db0d719c5c375b9d4e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-24T09:09:36Z",
    "title_canon_sha256": "a508277b14103abad2cd30c389788ccc2278f07098f9b726d9753753f3150829"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08975",
    "kind": "arxiv",
    "version": 1
  }
}