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 0xcbaf03b4d5dcb257f6dd97c9d4276fa24f2866dc0d6f6817cb14eca0ccc4a3eb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/068b0fc3-7344-46a6-b21f-bdac8cf8bb3c.json and https://artists.proofprofile.net/proofs/artist/068b0fc3-7344-46a6-b21f-bdac8cf8bb3c.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 0x8c23feb81353bcb70e9231d5aaab5f4b447a1bd13bb1b6f22db1dc8f5697bb2a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BGA471527336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47bd1181e1b5daaa2e971816b1f83dafb71455306a99baa63bb3c499b9c290f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HUA612000506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84735ca8328a9926c6e664193d175cc70f504a2183f1dccda0a65f9a208fe5fc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HUA612000450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3bf464d3dd4f201f3b2448a3524dacb36e8a625821171543d3a0f3690a0adc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HUA612000442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28a9f2ab8ee752ff61b941d946b1557797c8f110409fdfb64b23e66eff5da61. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HUA612000433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f53e1622ba7d0269fcdc55d174af62a915ac2166822cc888ab03bf1a31db5fb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/HUA612000757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296368e95d733191f90a6558bd815fc5119105ffd76343991eaac08c2e34129f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/HUA612021741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c51f033e781cd23f10c8d96fbc8736a31a049f8b2d0102803f6cc7949fd0a5e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:23:40Z), 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/HUA612101430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fc1867317f897f09c6e1de741be12052eb36b38c7afb7e20eb4703fd6488a9. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/HUA612102924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdd38f9474a902abfe925457febf644dfa40a45240c9b3b2f268dfab97cb16e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HUA612103471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6753343d86cd1f8225eed2059e4548df255ddf3fa3878e52da3e10c00c01578e. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/HUA612201668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1750836a6f2721c11a8ccba3b428808061d309b53e21bd0bf9fca6291d6c9d5c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/HUA612302694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0066ef17ca1c9030fb490e465ad8109f6d93286108583ce91c00461cd5f991cc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUA612403607.
Színjáték (Alex Floyd Hypertechno Remix)
Nem tagadom (Darwin Hypertechno Edit Remix 2025)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc19ec357c3529c19a5016f35225f38d40adf78c1c6452156b5ec9e9a1bada9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:13:08Z), 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/HUA612502751.