Pith Number

pith:4QFQR5I6

pith:2020:4QFQR5I6IKZ7VC2MBJO3FO4YM6

not attested not anchored not stored refs pending

The power spectrum extended technique applied to images of binary stars in the infrared

David Vernet, Eric Aristidi, Eric Cottalorda, Jean-Pierre Rivet, Karim Makki, Lyu Abe, Marcel Carbillet, Philippe Bendjoya

arxiv:2012.09558 v1 · 2020-12-17 · 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{4QFQR5I6IKZ7VC2MBJO3FO4YM6}

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	2026-07-05T02:00:18.952372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e40b08f51e42b3fa8b4c0a5db2bb986780aec0f1fc1302bbf9d0e7ae989e54bc

Aliases

arxiv: 2012.09558 · arxiv_version: 2012.09558v1 · doi: 10.48550/arxiv.2012.09558 · pith_short_12: 4QFQR5I6IKZ7 · pith_short_16: 4QFQR5I6IKZ7VC2M · pith_short_8: 4QFQR5I6

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/4QFQR5I6IKZ7VC2MBJO3FO4YM6 \
  | 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: e40b08f51e42b3fa8b4c0a5db2bb986780aec0f1fc1302bbf9d0e7ae989e54bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53981aa087ed228f5d0dfb8b544e2c9b17d70e39ae00c18a0c5ab2dbd29e6628",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-12-17T13:16:00Z",
    "title_canon_sha256": "77e5ed21b28fff879a32118400c67514bef198c0008ae2d1c5c823739d0efda1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.09558",
    "kind": "arxiv",
    "version": 1
  }
}