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 0xcbd03005872dbe2baeb5d0bf4d81a02859771fad90fdbc86fd8b558b05482698. 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/baf449c5-2500-411c-975a-ddf2bc845ab9.json and https://artists.proofprofile.net/proofs/artist/baf449c5-2500-411c-975a-ddf2bc845ab9.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 0x82eb626661d0f4334a3f0f7120ef560506dcd6b45d0220088196e320b334ef06. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:56:40Z), 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/QZES82206271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa5bd4186beda7ef2cf2f015d3633f7df790d781d1cf387ab14f02ad0816382. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:27:19Z), 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/QZES82206269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617668fbc03260a0f5d64a892ae627e4cf37032aaca8beea331f5575e5f5ff88. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZES82206270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9be9dc20b8a50f738c866a990784fb91ab0c751f97f5544f41c9d1d7a145cbf. 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/QZES82206265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0736cedfa9ea88bf756da579b7687d55a06e06e26f10aefd0d28cfc404e15a4. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZK6F2216227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3e10dddcca68a5bff064c3a2bdbb91bfeb65e94b6a41ad8e32134c29eb6c90. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZK6F2216229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37833dfc371774def807b972f7150fba47b2f54db192f33801bd7a2c8caaa947. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:55:22Z), 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/QZK6F2216228.
528Hz Deep Sleep Music for Babies and Children
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8113e1d5eb63bb81fd2079d0325c5bba93e8c29217553410b6cb6c8607e12d0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:28:03Z), 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/QZNWV2244674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276586ceb73d6dd5b606cc652291f10eb50072d0bf05338c01757dd2dc2c7a98. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWV2244670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcc216c5541fc4c4ba4f3a3f2040af32282e67b5d557a126088f301e59592a7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWV2244672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e68c999bdd4d4d8a0301e9dd9b112308adb528dcb9484ebe7f976ab79523b64. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZNWV2244675.
Sleep Regression (528 Hz music for deep sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3d94cd17e3b2fdaafbdcb9bce2fb1ea61f97d97189990e1967b9e76048feb9. 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/QZK6L2203568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347b48ae90e060629cf862c6275f9d0cbe02d7d3d04550acb8732a18fcfe7966. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:42:37Z), 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/QZK6L2203574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f70917882eb230998c26dc967833fab981b539bafe3a79a7ddc6dc90b6dea57. 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/QZK6L2203570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9829d10e8dbfbc7df8f12f7d43058a09bece692a96f8eacffa9ecda5ff7920c0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:14:41Z), 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/QZK6L2203566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab02e54dbc28040d02f82b2eafecfc79042f2a7b189eeaf714133cd7e73ffd04. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZK6L2203567.