Pith Number

pith:FRRMXGUK

pith:2009:FRRMXGUKTDCIAMGYZASVBM3AHZ

not attested not anchored not stored refs pending

First results of a cryogenic optical photon counting imaging spectrometer using a DROID array

A. van Dordrecht, D.D.E. Martin, P.J. Groot, P. Verhoeve, R.A. Hijmering, R. Venn

arxiv:0911.0313 v1 · 2009-11-02 · 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{FRRMXGUKTDCIAMGYZASVBM3AHZ}

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	2026-05-18T02:11:00.633798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c62cb9a8a98c48030d8c82550b3603e5d381cf219f548daa7f76f6ee25c9970

Aliases

arxiv: 0911.0313 · arxiv_version: 0911.0313v1 · doi: 10.48550/arxiv.0911.0313 · pith_short_12: FRRMXGUKTDCI · pith_short_16: FRRMXGUKTDCIAMGY · pith_short_8: FRRMXGUK

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/FRRMXGUKTDCIAMGYZASVBM3AHZ \
  | 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: 2c62cb9a8a98c48030d8c82550b3603e5d381cf219f548daa7f76f6ee25c9970

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18184c71fb331d5584cd75e15b4ff5fb5eb21089b3722356673336735c01b417",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-11-02T13:35:30Z",
    "title_canon_sha256": "29af97d2dbb31c181b9f760d09d78933de5ec4fd3dc1eb026a8d2e13a155da08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0313",
    "kind": "arxiv",
    "version": 1
  }
}