Pith Number

pith:6P3KV6SW

pith:2018:6P3KV6SWCCSMKIQV43IQ6ZYTDU

not attested not anchored not stored refs pending

Six Strange Facts About`Oumuamua

Abraham Loeb (Harvard)

arxiv:1811.08832 v2 · 2018-11-21 · physics.pop-ph · astro-ph.EP · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6P3KV6SWCCSMKIQV43IQ6ZYTDU}

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.

Cited by

1 paper in Pith

The Natural History of 'Oumuamua

Receipt and verification

First computed	2026-05-18T00:00:01.652875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3f6aafa5610a4c52215e6d10f67131d354c0a0900cbcd9686cfb550f0cb8408

Aliases

arxiv: 1811.08832 · arxiv_version: 1811.08832v2 · doi: 10.48550/arxiv.1811.08832 · pith_short_12: 6P3KV6SWCCSM · pith_short_16: 6P3KV6SWCCSMKIQV · pith_short_8: 6P3KV6SW

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/6P3KV6SWCCSMKIQV43IQ6ZYTDU \
  | 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: f3f6aafa5610a4c52215e6d10f67131d354c0a0900cbcd9686cfb550f0cb8408

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e0c547b186afbd83470317a756dc494c5c4783af35f6a9fb7b434829cca973a",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2018-11-21T17:17:13Z",
    "title_canon_sha256": "4fb91d09745f0d023caaa35e1d33218608b89afcd8f5e5c64b7ddf95662b2978"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08832",
    "kind": "arxiv",
    "version": 2
  }
}