Pith Number

pith:LNAE4Q2I

pith:2020:LNAE4Q2IXVAIEQRXQCHTL4Q4SB

not attested not anchored not stored refs pending

The optimization of satellite orbit for Space-VLBI observation

Lei Liu, Weimin Zheng

arxiv:2008.07790 v1 · 2020-08-18 · 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{LNAE4Q2IXVAIEQRXQCHTL4Q4SB}

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	2026-07-05T02:27:25.001802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b404e4348bd40824237808f35f21c9050dc5ed599b79ede30c542d8f111d793

Aliases

arxiv: 2008.07790 · arxiv_version: 2008.07790v1 · doi: 10.48550/arxiv.2008.07790 · pith_short_12: LNAE4Q2IXVAI · pith_short_16: LNAE4Q2IXVAIEQRX · pith_short_8: LNAE4Q2I

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/LNAE4Q2IXVAIEQRXQCHTL4Q4SB \
  | 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: 5b404e4348bd40824237808f35f21c9050dc5ed599b79ede30c542d8f111d793

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0dfeed16cc7baabf91b18d8a59b27ec0abfd418faa8eae99ed39dc717755dc6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-08-18T07:59:00Z",
    "title_canon_sha256": "acb17807aea33677c5d11487d7a858855ed007b87c7d55196b341f5861c03e71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.07790",
    "kind": "arxiv",
    "version": 1
  }
}