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 0x0a88baf0167be1a3969157417693b452b36b31f51f88909f28685ef134e2fa93. 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/9bbb829d-9b6e-4656-89b9-8748399b9518.json and https://artists.proofprofile.net/proofs/artist/9bbb829d-9b6e-4656-89b9-8748399b9518.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Harmony for Pets: Soothing Melodies for Furry Friends
Baby’s First Music: Gentle Tunes Lullaby
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 0x2021714d102b84c5090aba7230aa1224b164e872d244251b9cc4a05c27eff89f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DE1AK5229704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19c6ec00dcf3a81bd0e910c1626cd72e678e2477d7d324e76f6e53e43345fdf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DE1AK5229708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aad739611288d57e7276d3a71c725566660a7a728d4f7e0f6a584f92081b464. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:29Z), 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/DE1AK5229711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a34bca905cc1bc72dc4a88ec515321246cbb0f01d5c83e4dfe24d13962686a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DE1AK5229714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe621b06b6a81cd34c98039050ee31297e602687be8887d74b8715e88a819120d. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/DE1AK5229718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19c6ec00dcf3a81bd0e910c1626cd72e678e2477d7d324e76f6e53e43345fdf. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/DE1AK5229708.
All 9 Solfeggio Frequencies: Sleep Ambients
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8403a203f8d77774d8dc4ab4f53bad78229fdde807eb2106866f4ae2a86c61d9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DE1AK5230003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8403a203f8d77774d8dc4ab4f53bad78229fdde807eb2106866f4ae2a86c61d9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DE1AK5230003.
417 Hz Sound Bath: Let Go of Mental Blockages
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096e48ef3c92794697988bb189ae9243e5e1383ce968abd8466f6fb012d63410. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:07:45Z), 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/QT4K32512001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8890498cbf79fe18fc8794c0c9b4e06ef89b20d5a2eccbca10700d62776d87. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QT4K32512002.