Pith Number

pith:RDQSEQ2N

pith:2012:RDQSEQ2NP7EM4UEFH7AIV2O6BH

not attested not anchored not stored refs pending

Developing arrayed waveguide grating spectrographs for multi-object astronomical spectroscopy

Jon Lawrence, Joss Bland-Hawthorn, Michael Withford, Nemanja Jovanovic, Nick Cvetojevic

arxiv:1201.4616 v1 · 2012-01-23 · astro-ph.IM · 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{RDQSEQ2NP7EM4UEFH7AIV2O6BH}

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	2026-05-18T01:58:43.729202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88e122434d7fc8ce50853fc08ae9de09fb31155c9daf69deed25c07d190b9faa

Aliases

arxiv: 1201.4616 · arxiv_version: 1201.4616v1 · doi: 10.48550/arxiv.1201.4616 · pith_short_12: RDQSEQ2NP7EM · pith_short_16: RDQSEQ2NP7EM4UEF · pith_short_8: RDQSEQ2N

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/RDQSEQ2NP7EM4UEFH7AIV2O6BH \
  | 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: 88e122434d7fc8ce50853fc08ae9de09fb31155c9daf69deed25c07d190b9faa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e03a75ff5f6cb4b0e5c3daf04af88bc1586cd4adca5a7efa78a4c8b41066cc50",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-23T00:10:56Z",
    "title_canon_sha256": "4ba4f1bd3c7b006a506ce21ccc6877cfe9768b4c167dfe91ce90e3b56b5070af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4616",
    "kind": "arxiv",
    "version": 1
  }
}