Pith Number

pith:LW4PZWI3

pith:2010:LW4PZWI3XQ4WB2EACNO32RVQ3B

not attested not anchored not stored refs pending

Extreme Multiplex Spectrograph: An efficient mechanical design for high-demanding requirements

C.M. Dubbeldam, F. Prada, K. Meisenheimer, R. Content, R.R. Rohloff, R. Sharples, S. Becerril, T. Shanks

arxiv:1008.1227 v1 · 2010-08-06 · 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{LW4PZWI3XQ4WB2EACNO32RVQ3B}

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	2026-05-18T04:42:33.945562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5db8fcd91bbc3960e880135dbd46b0d8768d51bc8bb2b47db058e952f14e68ed

Aliases

arxiv: 1008.1227 · arxiv_version: 1008.1227v1 · doi: 10.48550/arxiv.1008.1227 · pith_short_12: LW4PZWI3XQ4W · pith_short_16: LW4PZWI3XQ4WB2EA · pith_short_8: LW4PZWI3

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/LW4PZWI3XQ4WB2EACNO32RVQ3B \
  | 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: 5db8fcd91bbc3960e880135dbd46b0d8768d51bc8bb2b47db058e952f14e68ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c68056137052e4d191c8a5bcbe0f3edb7f66f0d4545ffef1258aa42e2d05c27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-08-06T16:15:03Z",
    "title_canon_sha256": "907b3c2e1d5193cfd4d3c0ce32db320810b4e3dd10d4ca9075dbc22233c7714a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1227",
    "kind": "arxiv",
    "version": 1
  }
}