Pith Number

pith:455TAMZL

pith:2012:455TAMZLUGWTR2AYFLG75T4NQG

not attested not anchored not stored refs pending

Spacecraft VLBI and Doppler tracking: algorithms and implementation

Dmitry A. Duev, Giuseppe Cimo, Guifre Molera Calves, Leonid I. Gurvits, Sergei V. Pogrebenko, Tatiana Bocanegra Bahamon

arxiv:1203.4408 v1 · 2012-03-20 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{455TAMZLUGWTR2AYFLG75T4NQG}

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	2026-05-18T03:55:46.374230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e77b30332ba1ad38e8182acdfecf8d8186d3fc898545d0863819399cce3712c2

Aliases

arxiv: 1203.4408 · arxiv_version: 1203.4408v1 · doi: 10.48550/arxiv.1203.4408 · pith_short_12: 455TAMZLUGWT · pith_short_16: 455TAMZLUGWTR2AY · pith_short_8: 455TAMZL

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/455TAMZLUGWTR2AYFLG75T4NQG \
  | 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: e77b30332ba1ad38e8182acdfecf8d8186d3fc898545d0863819399cce3712c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "567416145ac8ff2495a539e3747377876c8f1132e08bd1f15c264f0dced3bc5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-03-20T12:26:49Z",
    "title_canon_sha256": "4603265cfb1342e9091f86476540c99e4302752a84847fcce73e01e807612d73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4408",
    "kind": "arxiv",
    "version": 1
  }
}