Pith Number

pith:P4465JO4

pith:2025:P4465JO4MVHH2V7VEWFDUFZG47

not attested not anchored not stored refs pending

A Radio Science Experiment for the Ramses Mission to Apophis

Andrea Negri, Edoardo Gramigna, Giacomo Paialunga, Giovanni Cucinella, Lorenzo Simone, Marco Zannoni, Paolo Tortora, Pier Luigi De Rubeis, Riccardo Lasagni Manghi

arxiv:2503.19998 v1 · 2025-03-25 · 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{P4465JO4MVHH2V7VEWFDUFZG47}

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	2026-07-05T10:39:29.881584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f39eea5dc654e7d57f5258a3a1726e7c7af6d6c55c60a8cdc6d73d11bd6aaf2

Aliases

arxiv: 2503.19998 · arxiv_version: 2503.19998v1 · doi: 10.48550/arxiv.2503.19998 · pith_short_12: P4465JO4MVHH · pith_short_16: P4465JO4MVHH2V7V · pith_short_8: P4465JO4

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/P4465JO4MVHH2V7VEWFDUFZG47 \
  | 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: 7f39eea5dc654e7d57f5258a3a1726e7c7af6d6c55c60a8cdc6d73d11bd6aaf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2eaa56e4a283bb16bb24dd91344b7a1d8310abe72d66b35b16ce3869d9fd9a95",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-03-25T18:32:33Z",
    "title_canon_sha256": "aa82e00c917790ecd9a63b42e15e29831fd33cf0ab22a1cd32c744dfac9e4829"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.19998",
    "kind": "arxiv",
    "version": 1
  }
}