Pith Number

pith:CPA4RQQS

pith:2018:CPA4RQQS7UDD7BXWNNS72CP6KP

not attested not anchored not stored refs pending

Have we missed an interstellar comet four years ago?

(2) Space Research Centre, A.Mickiewicz Univ, Faculty of Physics, Ma{\l}gorzata Kr\'olikowska (2) ((1) Astronomical Observatory Institute, Piotr A. Dybczy\'nski (1), Poland, Poland), Polish Academy of Sciences, Pozna\'n, Warsaw

arxiv:1810.12766 v1 · 2018-10-30 · 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{CPA4RQQS7UDD7BXWNNS72CP6KP}

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	2026-05-18T00:01:54.195971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13c1c8c212fd063f86f66b65fd09fe53c82136476cafd0bc32c60fd853c10ffc

Aliases

arxiv: 1810.12766 · arxiv_version: 1810.12766v1 · doi: 10.48550/arxiv.1810.12766 · pith_short_12: CPA4RQQS7UDD · pith_short_16: CPA4RQQS7UDD7BXW · pith_short_8: CPA4RQQS

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/CPA4RQQS7UDD7BXWNNS72CP6KP \
  | 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: 13c1c8c212fd063f86f66b65fd09fe53c82136476cafd0bc32c60fd853c10ffc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7ab7fc4410a11f9bc9d1f92763587e394ae8f07cabc9fb8aee272dd01888ee2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-10-30T14:18:15Z",
    "title_canon_sha256": "b49ca7a32bd2cd012e3ce45ff355ce40d3659bd9f156b07f30bad85b96fbb38c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12766",
    "kind": "arxiv",
    "version": 1
  }
}