Bitcoin difficulty adjustment estimate
Bitcoin difficulty adjustment estimate: progress through the 2016-block period, average block time, projected change and expected retarget time.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
1039 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/explorer/bitcoin/difficulty-adjustment
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.01 | 1039 ms |
Example input (from the provider)
{
"method": "GET",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"avg_block_time_seconds_this_period": {
"description": "average block time this period",
"type": "number"
},
"block_height": {
"description": "best block height",
"type": "number"
},
"blocks_into_period": {
"description": "blocks mined in this period",
"type": "number"
},
"blocks_remaining": {
"description": "blocks until the retarget",
"type": "number"
},
"chain": {
"description": "the chain this describes",
"type": "string"
},
"current_difficulty": {
"description": "current difficulty",
"type": "number"
},
"estimated_hours_until_retarget": {
"description": "hours until then",
"type": "number"
},
"estimated_retarget_time": {
"description": "estimated retarget time",
"type": "string"
},
"note": {
"description": "plain-language reading of the result, including units",
"type": "string"
},
"period_start_height": {
"description": "first block of this 2016-block period",
"type": "number"
},
"progress_pct": {
"description": "share of the period completed",
"type": "number"
},
"projected_difficulty": {
"description": "projected new difficulty",
"type": "number"
},
"projected_difficulty_change_pct": {
"description": "projected change at the next retarget",
"type": "number"
},
"source": {
"description": "where the data was read from",
"type": "string"
}
},
"required": [
"chain",
"block_height",
"current_difficulty",
"blocks_remaining",
"projected_difficulty_change_pct",
"estimated_retarget_time",
"note",
"source"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}