Pith Number

pith:M66M2KOU

pith:2026:M66M2KOUNI6MTC23AECC7FLEOI

not attested not anchored not stored refs pending

Doppler Tracking of the Artemis II Mission (and Other Spacecraft)

Ankur Purao, Elizabeth Baganz, Ella Bianco, Michael Robinson, Nicholas Hagg

arxiv:2606.27531 v1 · 2026-06-25 · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M66M2KOUNI6MTC23AECC7FLEOI}

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	2026-06-29T00:14:09.196574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67bccd29d46a3cc98b5b01042f95647228f71d63f9f320473b8e398b5b8ece8a

Aliases

arxiv: 2606.27531 · arxiv_version: 2606.27531v1 · doi: 10.48550/arxiv.2606.27531 · pith_short_12: M66M2KOUNI6M · pith_short_16: M66M2KOUNI6MTC23 · pith_short_8: M66M2KOU

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/M66M2KOUNI6MTC23AECC7FLEOI \
  | 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: 67bccd29d46a3cc98b5b01042f95647228f71d63f9f320473b8e398b5b8ece8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79e2859b1d1cd5116359a738bec2173144241cd778cabe7aef89e81be99878af",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2026-06-25T20:26:53Z",
    "title_canon_sha256": "e1324c738adddf38b073368ed21aa5ec4e781f94c2f2e206e61923d77caa4fd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27531",
    "kind": "arxiv",
    "version": 1
  }
}