3hcvxvrh

3hcvxvrh.nx.link

API retrieves cryptographic checkpoints, leaf indices, node hashes, and tree state from blockchain witnessing infrastructure.

blockchain_rpc

from$0.01

Trust signal

Emerging3030/ 100

3 of 4 pillars

coverage 75%

Pillars

Traction

40%

Liveness

—

Identity

Longevity

70%

Signals

On-chain settlement (CDP)

Active in last 30 days

Endpoint reachable

GitHub org present

X (Twitter) handle

.well-known/agent.json

skill.md published

ERC-8004 registered

Evidence tiers, not an endorsement · trust model v0.1.0 (provisional) · CDP-lane settlement only (D3) · Trust API coming soon

On-chain traction

Min price (402)$0.01

Total vol$0.87

30d volunverified

Total tx87

30d txunverified

FirstNov 3, 2025

LastApr 8, 2026

ERC-8004 agent registry

—Not registered

Not found in the ERC-8004 agent registry. This is the default state — absence is not a negative signal.

Identity & classification

Domain3hcvxvrh.nx.link

Xunverified

GitHubunverified

ENSunverified

Category confidenceunscored

Settlement volume

USDC settled on-chain · monthly

as of Jul 12, 2026

loading chart…

Endpoints(13)

https://3hcvxvrh.nx.link/_health

Witness API https://api.witness.co - GET _health

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getCheckpointByTimestamp

Witness API https://api.witness.co - GET Get the first checkpoint at or after a unix timestamp.

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getCheckpointByTransactionHash

Witness API https://api.witness.co - GET Get a checkpoint by its transaction hash.

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getEarliestCheckpointCoveringLeafIndex

Witness API https://api.witness.co - GET Get earliest checkpoint covering a specific leaf index.

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getLatestCheckpoint

Witness API https://api.witness.co - GET Returns the latest onchain checkpoint.

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getLatestCheckpointForAllChains

Witness API https://api.witness.co - GET Returns the latest onchain checkpoint for all chains.

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getLeafIndexByHash

Witness API https://api.witness.co - GET getLeafIndexByHash

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getNodeHashById

Witness API https://api.witness.co - GET getNodeHashById

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getProofForLeafHash

Witness API https://api.witness.co - GET Returns the proof for the given leafHash. Supports an optional targetTreeSize parameter, which defaults to the latest checkpointed tree size.

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getTimestampByLeafHash

Witness API https://api.witness.co - GET getTimestampByLeafHash

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/getTreeState

Witness API https://api.witness.co - GET getTreeState

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/postLeafHash

Witness API https://api.witness.co - POST postLeafHash

$0.010 USDCpay→0xcbbd…4694unprobed

https://3hcvxvrh.nx.link/postProof

Witness API https://api.witness.co - POST postVerifyProof

$0.010 USDCpay→0xcbbd…4694unprobed