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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e37688fb9e4406eac8e3da7b9c2e32801fbdde2a638c8f54860cb2c1590627. 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/eca4c70b-d01c-4ae9-affc-5805e8e551a2.json and https://artists.proofprofile.net/proofs/artist/eca4c70b-d01c-4ae9-affc-5805e8e551a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737d074bc5aec2f3f2881310b5837229e2613146ea9c114ae6ad26008736c0cb. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEN061800241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737d074bc5aec2f3f2881310b5837229e2613146ea9c114ae6ad26008736c0cb. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:00:14Z), 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/DEN061800241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6915fbe6bb4750445ed48a163f56f1d4e97ec81650c3292a987de9987d7dd7b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:09:18Z), 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/DEN062200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50390799745faa0de2186cdd56213e2c070d0284ac76e49ea47159413839207a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEN062300263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50390799745faa0de2186cdd56213e2c070d0284ac76e49ea47159413839207a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEN062300263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78de8cc730bf94e35e20225b3eadba0c461759e3ef363ad830adbe02298fc860. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/DEN062300523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed8f43fa2cb18a3cdaa445476f2cfe6d5288ea8adf1cdf0555cf8dfa9147a3e. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/DEN062300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c280ac1ac5a54770b956ee6a848b0dee1649e62fc444e9ca26c348852bceac. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEN062500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacec5e071846cfc65e9ebf577582145c2225da236b6a4046cf7eea2ceaec991c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:08:32Z), 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/DEN062500528.
Kontor Top Of The Clubs – Best Of 2021 Mix x Best Of 25 Years Kontor Records Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317e2df309d1f9eb1c089c6c8b57f7c2886f28a7ce8599d5c74272465f5c50a6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN062101348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b5cdfe4cf18e81148991fda4f461907d05fa6db0ebb353f136d4df2737ccb3. 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/DEN062100642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f60d13ba75894f962f34d444bc09d166c847f083eae3fd521392b805600fdd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEN062100651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c86268e0d812e880e3879ea1c79968c86942dd494e267e768ca09760755882. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEN061800903.
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
BODY 2 BODY - Hagen Feetly Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6970623a1b96f927685276c59c64cb5f2644c0d232df8ad112c6ad50ee2f2d4. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEN061800904.