Pith Number

pith:P2FM52CD

pith:2025:P2FM52CDVGQEXYDM3SYAZJVWTX

not attested not anchored not stored refs pending

A description of the radio astronomy data processing tool DDF Pipeline

Fran\c{c}ois Bodin, Laurent Morin, Mathis Certenais

arxiv:2509.03075 v1 · 2025-09-03 · astro-ph.IM · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2FM52CDVGQEXYDM3SYAZJVWTX}

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	2026-07-05T12:04:03.663199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e8acee843a9a04be06cdcb00ca6b69dc702dd46c9768e57a5dbbe7fae67c3e2

Aliases

arxiv: 2509.03075 · arxiv_version: 2509.03075v1 · doi: 10.48550/arxiv.2509.03075 · pith_short_12: P2FM52CDVGQE · pith_short_16: P2FM52CDVGQEXYDM · pith_short_8: P2FM52CD

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/P2FM52CDVGQEXYDM3SYAZJVWTX \
  | 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: 7e8acee843a9a04be06cdcb00ca6b69dc702dd46c9768e57a5dbbe7fae67c3e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "776f0e1e4538752ac67cdb9b7e5d9b8132b3590b673567574b0a82cd5f9a583e",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-09-03T07:13:20Z",
    "title_canon_sha256": "2e7dbcd063876e92ea6d080d31499ba61a89c1e17a9e02a1a790205753038939"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.03075",
    "kind": "arxiv",
    "version": 1
  }
}