Pith Number

pith:DIBBLBBK

pith:2009:DIBBLBBKRA4ATCBRMDLSBSIFFE

not attested not anchored not stored refs pending

Compressive Sensing for Spectroscopy and Polarimetry

2), (2) Departamento de Astrofisica, (3) THEMIS), A. Asensio Ramos (1, A. Lopez Ariste (3) ((1) Instituto de Astrofisica de Canarias, Universidad de La Laguna

arxiv:0909.4439 v1 · 2009-09-24 · astro-ph.IM · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DIBBLBBKRA4ATCBRMDLSBSIFFE}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:11:38.055229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a0215842a883809883160d720c90529015ebab1f8b7eb478ad3adf6c15ba82d

Aliases

arxiv: 0909.4439 · arxiv_version: 0909.4439v1 · doi: 10.48550/arxiv.0909.4439 · pith_short_12: DIBBLBBKRA4A · pith_short_16: DIBBLBBKRA4ATCBR · pith_short_8: DIBBLBBK

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/DIBBLBBKRA4ATCBRMDLSBSIFFE \
  | 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: 1a0215842a883809883160d720c90529015ebab1f8b7eb478ad3adf6c15ba82d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcd0f6486bc105affd489fd75a368019cad320b18dc10508b4e3ac72cd9c41aa",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-09-24T13:29:22Z",
    "title_canon_sha256": "05c9204b94892c4de3dbe5c1eb09f53aa4cdfa8af6e42373df3a5507aa0c7900"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4439",
    "kind": "arxiv",
    "version": 1
  }
}