Pith Number

pith:YB4DHQXN

pith:2018:YB4DHQXN4KF5IPKH4VVKH4MDZJ

not attested not anchored not stored refs pending

Radar-based Re-Entry Predictions with very limited tracking capabilities: the GOCE case study

Stefano Cical\`o, Stijn Lemmens

arxiv:1805.09171 v1 · 2018-05-23 · 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{YB4DHQXN4KF5IPKH4VVKH4MDZJ}

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	2026-05-18T00:15:08.316601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c07833c2ede28bd43d47e56aa3f183ca4d7ee0287642359170d31bc7bdc90835

Aliases

arxiv: 1805.09171 · arxiv_version: 1805.09171v1 · doi: 10.48550/arxiv.1805.09171 · pith_short_12: YB4DHQXN4KF5 · pith_short_16: YB4DHQXN4KF5IPKH · pith_short_8: YB4DHQXN

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/YB4DHQXN4KF5IPKH4VVKH4MDZJ \
  | 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: c07833c2ede28bd43d47e56aa3f183ca4d7ee0287642359170d31bc7bdc90835

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25c1ce946e878eb653400105b5e10dd9e880126ac798da7d27a43c938c687975",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-05-23T13:48:07Z",
    "title_canon_sha256": "05301dc499729c99da84b943accbcbda3213aa841427f899768edb6421e0c1ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09171",
    "kind": "arxiv",
    "version": 1
  }
}