Pith Number

pith:FMINPQXH

pith:2009:FMINPQXHUDZ3ZANPAGW3FP2JE2

not attested not anchored not stored refs pending

Characterization and on-sky demonstration of an integrated photonic spectrograph for astronomy

A. Horton, J. Bland-Hawthorn, J.S. Lawrence, N. Cvetojevic, R. Haynes, S.C. Ellis

arxiv:0910.4804 v1 · 2009-10-26 · 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{FMINPQXHUDZ3ZANPAGW3FP2JE2}

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	2026-05-18T00:15:25.096323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b10d7c2e7a0f3bc81af01adb2bf49268427e64344a6149ded44145948c6f3f2

Aliases

arxiv: 0910.4804 · arxiv_version: 0910.4804v1 · doi: 10.48550/arxiv.0910.4804 · pith_short_12: FMINPQXHUDZ3 · pith_short_16: FMINPQXHUDZ3ZANP · pith_short_8: FMINPQXH

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/FMINPQXHUDZ3ZANPAGW3FP2JE2 \
  | 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: 2b10d7c2e7a0f3bc81af01adb2bf49268427e64344a6149ded44145948c6f3f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b680c44d91b1b02f9a4a988d85874a0115b6cdc9bc3966dc780b3d25216f3045",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-10-26T04:16:01Z",
    "title_canon_sha256": "6d77fc058add4ad20d49e67a3821d9cdc799bac6c853c04c9a331a3aaefc7f16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4804",
    "kind": "arxiv",
    "version": 1
  }
}