Pith Number

pith:7BPAMG7V

pith:2013:7BPAMG7VOTKATF3P633747QVU7

not attested not anchored not stored refs pending

Exact solution for a binary system of unequal counter-rotating black holes

Alfredo Mac\'ias, Claus L\"ammerzahl, I. Cabrera-Munguia

arxiv:1302.4843 v3 · 2013-02-20 · gr-qc

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T02:52:12.767520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f85e061bf574d409976ff6f7fe7e15a7e7f339b84c22600c59be686764f66bf8

Aliases

arxiv: 1302.4843 · arxiv_version: 1302.4843v3 · doi: 10.48550/arxiv.1302.4843 · pith_short_12: 7BPAMG7VOTKA · pith_short_16: 7BPAMG7VOTKATF3P · pith_short_8: 7BPAMG7V

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/7BPAMG7VOTKATF3P633747QVU7 \
  | 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: f85e061bf574d409976ff6f7fe7e15a7e7f339b84c22600c59be686764f66bf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "812a0fb9917d4c30b3a3b09c63e64108ec228d9825d6a707c1c47b825c09d491",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-02-20T09:06:15Z",
    "title_canon_sha256": "c08f457b94c26d113dcb8bb65e9e5039c58b2cc5d71cacea104dd2caaa781b09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4843",
    "kind": "arxiv",
    "version": 3
  }
}