Pith Number

pith:ZXUUGLNV

pith:2014:ZXUUGLNVUNL6YAVMCE26KJ3GQD

not attested not anchored not stored refs pending

Efficiency Measurements and Installation of a New Grating for the OSIRIS Spectrograph at Keck Observatory

2), 2) ((1) University of Toronto, (2) Dunlap Institute, (3) University of California-Los Angeles, (4) Keck Observatory, 5), (5) University of California-Berkeley), Etsuko Mieda (1 and2), Jacob Gordon (1, James E. Larkin (3), James E. Lyke (4), James R. Graham (2, Jerome Maire (2), Randy D. Campbell (4), Sean M. Adkins (4), Shelley A. Wright (1, Tuan Do (2)

arxiv:1401.4456 v1 · 2014-01-17 · 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{ZXUUGLNVUNL6YAVMCE26KJ3GQD}

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	2026-05-18T00:23:46.331615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cde9432db5a357ec02ac1135e5276680fec046d5d1cc2561bc4c746b08f52065

Aliases

arxiv: 1401.4456 · arxiv_version: 1401.4456v1 · doi: 10.48550/arxiv.1401.4456 · pith_short_12: ZXUUGLNVUNL6 · pith_short_16: ZXUUGLNVUNL6YAVM · pith_short_8: ZXUUGLNV

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/ZXUUGLNVUNL6YAVMCE26KJ3GQD \
  | 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: cde9432db5a357ec02ac1135e5276680fec046d5d1cc2561bc4c746b08f52065

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8237421ce62c3986599fa8090227e24b12c9fdd1d51f726d385ca30bbbddfec5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-01-17T21:00:00Z",
    "title_canon_sha256": "ff245f332fd545e3d609f7e26e4b3253e064d83c9232f0029f70a662a91060fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4456",
    "kind": "arxiv",
    "version": 1
  }
}