Koeru () is a small borough in Järva Parish, Järva County in north-central Estonia. As of the 2011 census, the settlement's population was 1,178. The tallest structure in Estonia, the Koeru TV Mast,
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773ba3f0a11ac2631a12d2dae00d13a97b24dd88429aa8f4152b67681e337091. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82b3443a-45cc-4ce6-bc8a-c02a3bb838ae.json and https://artists.proofprofile.net/proofs/artist/82b3443a-45cc-4ce6-bc8a-c02a3bb838ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
AINEED (feat. Neneruneru (CV:ICHIGORINAHAMU), Kanou Hikari & ICHIGORINAHAMU)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb299ba75de0e94d7222187f73eeb6ae9d76520ede1a1248af005c43ddf5534. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2487668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ec562f9ca15ae7c74052c602e464a3d3dbeeb52411496cfcae59793b9f6253. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2487672.
DENNOU TOPPA (feat. INUKAI ULU (CV:POCHI), INUKAI LULU (CV:YURICO) & SUISEI LUNA (CV:YOUNAPI))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d629c3f6976c1d6e0b77360a2b4ba0785972900c494d7590c887d3cdf9fd0bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2473051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954011925cb1fd46eb11e867ba967d4719dbdc6d6f2fc0c8db939f6577694d9b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2473056.
bit by bit (feat. SUISEI LUNA (CV:YOUNAPI), INUKAI ULU (CV:POCHI) & INUKAI LULU (CV:YURICO))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1b1b79fcc237e662a6537879c4463dfd19d6763e99d7970ea52e0c514211b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2444082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86317a8aaf174ac3bf1f5bb27bed022cbbcc3aff289b40db9ae3609cf7a353f3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2444081.
POOL (feat. Meron Ryan) - KSUKE & KOERU VIP REMIX
POOL (feat. Meron Ryan) [KSUKE & KOERU VIP REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54e3f9d50058c3dbc5f8781956104c14d75626fdeaa0423a3c531cc69740072. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP02000551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a6fb1175d5646b5c08874bc53560ea76bedea7e4bb879f87691ae5b7648640. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2419287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9becace13f7c897fa2585e44571859c47ad5a705e1291d0b141363abe5a22a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2419291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdb0c871652020a86b8e4b4cc40f1b8e3caf4827a53e01597949ef5fc3cbce2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2419310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2148afde2ce46cf1fbf1832dc6f0eebfcb4c1afcd4e5d54e90eac468913179. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2419313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a913f8943853bc10b71cbdddecfec99064ffcb6347ab891194c75b2d1584de. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2223558.