Pith Number

pith:UFSSWGTG

pith:2019:UFSSWGTGXCH3TDRXJ6N6IBYP64

not attested not anchored not stored refs pending

Turning up the heat on `Oumuamua

Abraham Loeb, John C. Forbes

arxiv:1901.00508 v1 · 2019-01-02 · 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{UFSSWGTGXCH3TDRXJ6N6IBYP64}

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	2026-05-17T23:47:58.627818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1652b1a66b88fb98e374f9be4070ff710c31ac90894a60ccfa7bb384df4a8f6

Aliases

arxiv: 1901.00508 · arxiv_version: 1901.00508v1 · doi: 10.48550/arxiv.1901.00508 · pith_short_12: UFSSWGTGXCH3 · pith_short_16: UFSSWGTGXCH3TDRX · pith_short_8: UFSSWGTG

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/UFSSWGTGXCH3TDRXJ6N6IBYP64 \
  | 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: a1652b1a66b88fb98e374f9be4070ff710c31ac90894a60ccfa7bb384df4a8f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d821fc008ce5ca1cc285f7f80966dd27367eac2d2d0491022a98db108fcc2c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-01-02T19:01:41Z",
    "title_canon_sha256": "2c3189a84ac06db224ec8ffc762befa77541d3000832971af6cd0ed903f9f059"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00508",
    "kind": "arxiv",
    "version": 1
  }
}