Pith Number

pith:FR77NQG3

pith:2018:FR77NQG3XAQO7QMPQBANREKBWT

not attested not anchored not stored refs pending

Two Hyperbolic Baldheads in the Solar System: 2017 U7 and 2018 C2

Man-To Hui

arxiv:1806.06904 v1 · 2018-06-18 · 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{FR77NQG3XAQO7QMPQBANREKBWT}

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	2026-05-18T00:08:40.847364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c7ff6c0dbb820efc18f8040d89141b4e6d63f1229a1b7f8c019d060fa38ea7e

Aliases

arxiv: 1806.06904 · arxiv_version: 1806.06904v1 · doi: 10.48550/arxiv.1806.06904 · pith_short_12: FR77NQG3XAQO · pith_short_16: FR77NQG3XAQO7QMP · pith_short_8: FR77NQG3

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/FR77NQG3XAQO7QMPQBANREKBWT \
  | 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: 2c7ff6c0dbb820efc18f8040d89141b4e6d63f1229a1b7f8c019d060fa38ea7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86c39cf94d2474bc474161db2bc18e7e0a69673a158be9ec7eaadfabbaad3efa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-06-18T19:54:51Z",
    "title_canon_sha256": "9f4fabeba0aab7b1cd6d9599f09f3d9193990a5c90ae36cea598786d8464dc2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06904",
    "kind": "arxiv",
    "version": 1
  }
}