Pith Number

pith:5BTP52EK

pith:2021:5BTP52EKM2T6XAD5XWMVOLL7Q7

not attested not anchored not stored refs pending

prose: A Python framework for modular astronomical images processing

Elsa Ducrot, Emmanu\"el Jehin, Francisco J. Pozuelos, Laetitia Delrez, Lionel J. Garcia, Mathilde Timmermans, Micha\"el Gillon, Robert D. Wells

arxiv:2111.02814 v2 · 2021-11-04 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5BTP52EKM2T6XAD5XWMVOLL7Q7}

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	2026-07-05T03:32:26.981130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e866fee88a66a7eb807dbd99572d7f87d620ef9921b8792e9876ab4b49478882

Aliases

arxiv: 2111.02814 · arxiv_version: 2111.02814v2 · doi: 10.48550/arxiv.2111.02814 · pith_short_12: 5BTP52EKM2T6 · pith_short_16: 5BTP52EKM2T6XAD5 · pith_short_8: 5BTP52EK

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/5BTP52EKM2T6XAD5XWMVOLL7Q7 \
  | 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: e866fee88a66a7eb807dbd99572d7f87d620ef9921b8792e9876ab4b49478882

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebf38a7b192789f45cc7a45c9f1d1eae4ddbb1568aae6f975c5db8eb20864abf",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-11-04T12:27:52Z",
    "title_canon_sha256": "8235dcba0b095828f48fe04db16bcc2ece90c22726c7bde7a2e9dc300d691e77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.02814",
    "kind": "arxiv",
    "version": 2
  }
}