The Block Space Explorer

See the data inside every block.

Browse recent Bitcoin blocks, open the mosaic of each block's space, preview the inscriptions it carries, and verify your own record against the chain — all in the browser.

Live on-chain block data · inscription detail representative

Recent blocks

12 blocks

Block

#952,915

0000000000…c7b488d39d

Mined by

SpiderPool

Timestamp

2026-06-09 01:31:25 UTC

Transactions

4,044

Size

1.65 MB

Inscriptions

Median fee

1.1739395428571424 sat/vB

Space inscribed

57%

The space inside this block

inscriptionwitness dataempty

Hover a bright cell to inspect an inscription. Dim cells are inscribed witness data; empty cells are unused space.

Inscriptions in this block6 shown · representative

// recursive inscription module
import bytes from '/content/66044bb850b1i0';
export const render = (sat) =>
  decode(bytes).withProvenance(sat);

Code

#6,670,6214.60 KB

sat1,968,044,459,460

hash7b74a0…447d46

id216d30…42fi0

First sat of the block — a permanent marker in the ledger of record.

Textrare

#6,670,6223.04 KB

sat1,968,040,501,522

hash8276f5…4ed5e4

idde7f0c…767i0

Provenance entry: original capture, no synthetic generation involved.

Textrare

#6,670,6231.60 KB

sat1,968,039,691,510

hasheca61d…dfaaa3

id466d9e…7eci0

{
  "standard": "model-attestation/v1",
  "model": "llama-3.1-70b",
  "weights_sha256": "dc0a98b9603aeacc93a8f751ce6eefb78a546c70b3b1a5a36e37740463f306ab",
  "dataset_fingerprint": "bed3a4884468127992ac4b5eb584ca6e",
  "anchored_by": "agent://d01a3e5e",
  "n": 3
}

JSON

#6,670,624756 B

sat1,968,029,690,771

hash769d56…dd96d0

id76bf14…75bi0

{
  "standard": "model-attestation/v1",
  "model": "sonnet-4",
  "weights_sha256": "d0e2e3181c76122fa3b9020558bfceb759f358e14b8c19330bc0593c89b6e483",
  "dataset_fingerprint": "f467a5d96d7872cee53e3886c6d0e59a",
  "anchored_by": "agent://7a3e7f16",
  "n": 4
}

JSON

#6,670,6252.94 KB

sat1,968,047,490,592

hash61125a…b8d3c0

id140025…136i0

<!doctype html>
<title>on-chain</title>
<canvas id="c"></canvas>
<!-- fully self-contained, seed 63822 -->

HTMLuncommon

#6,670,6263.64 KB

sat1,968,004,329,592

hash538048…21b12a

idcbb473…2edi0

Verify a record

Demo

Paste text or drop a file. The SHA-256 hash is computed entirely in your browser — nothing is uploaded — then shown as it would appear in a proof-of-inscription anchored to Bitcoin.

Demonstration only — no transaction is broadcast and nothing is written on-chain. It shows the shape of a real proof-of-inscription.