Pith Number

pith:2GPKTHOG

pith:2018:2GPKTHOGW7NNDIQ25M6VEXXU6Z

not attested not anchored not stored refs pending

Predicting the broad lines polarization emitted by supermassive binary black holes

{\DJ}. Savi\'c, F. Marin, L. \v{C}. Popovi\'c

arxiv:1812.06528 v1 · 2018-12-16 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state 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

✓ 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	2026-05-17T23:52:03.654644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d19ea99dc6b7dad1a21aeb3d525ef4f65cc387d7746bf224aabec0a8222bd802

Aliases

arxiv: 1812.06528 · arxiv_version: 1812.06528v1 · doi: 10.48550/arxiv.1812.06528 · pith_short_12: 2GPKTHOGW7NN · pith_short_16: 2GPKTHOGW7NNDIQ2 · pith_short_8: 2GPKTHOG

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/2GPKTHOGW7NNDIQ25M6VEXXU6Z \
  | 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: d19ea99dc6b7dad1a21aeb3d525ef4f65cc387d7746bf224aabec0a8222bd802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51ba556c4ae692996ebd6fdd12ace2c1c8d025d67ebea5ecf7de66e036777c58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-16T20:17:50Z",
    "title_canon_sha256": "e37c51deb6ebca64852599edb09a9ec3091e5023ff0fb7ee3fc240ac34b27996"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06528",
    "kind": "arxiv",
    "version": 1
  }
}