Pith Number

pith:7A5PH5UM

pith:2018:7A5PH5UM6FNHGNO3KHAK7CIHDI

not attested not anchored not stored refs pending

Breakthrough Listen Observations of 1I/'Oumuamua with the GBT

A. Siemion, D. C. Price, D. DeBoer, D. H. E. MacMahon, G. Hellbourg, H. Isaacson, J. E. Enriquez, M. Lebofsky, N. Gizani, R. S. Park, S. Croft, T. J. W. Lazio, V. Gajjar

arxiv:1801.02814 v2 · 2018-01-09 · astro-ph.EP · 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{7A5PH5UM6FNHGNO3KHAK7CIHDI}

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	2026-05-18T00:26:17.766627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f83af3f68cf15a7335db51c0af89071a1fda2a571571fb7cf166dc020279cb83

Aliases

arxiv: 1801.02814 · arxiv_version: 1801.02814v2 · doi: 10.48550/arxiv.1801.02814 · pith_short_12: 7A5PH5UM6FNH · pith_short_16: 7A5PH5UM6FNHGNO3 · pith_short_8: 7A5PH5UM

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/7A5PH5UM6FNHGNO3KHAK7CIHDI \
  | 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: f83af3f68cf15a7335db51c0af89071a1fda2a571571fb7cf166dc020279cb83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08a4b7b4af6d9244b72d3ff70c9f46e012b56d7a2ab7f119669fb5286466f22d",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-01-09T06:42:30Z",
    "title_canon_sha256": "1bded621cb974783c665bdfeb5c077ea03177bd9dbb0811ae15226295457fb65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02814",
    "kind": "arxiv",
    "version": 2
  }
}