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 0x26adc7cebb267fe708da424b6cae35a84a9f979b86bbce063f1820b86956e572. 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/d7d4dc71-884a-48dc-a0eb-493dd364ab24.json and https://artists.proofprofile.net/proofs/artist/d7d4dc71-884a-48dc-a0eb-493dd364ab24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The New Sound of Spa Relaxing Melodies, Vol. 1
Sanfte Musik Zur Entspannung (Mit Klavier Und Naturgeräuschen)
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 0x74b2d7da75c2ed125ea6d590e1ffa222c8b4a706a536b2bd70324b183b58f9fa. 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/DEBD51500688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dace6f42f8f852bb4ab073b6022f4f92ee2e4fbc69d082a9c0002bae2d8d106. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEBD51500690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e70039105b00f8032c015e36eff5039f57497c7a8cd430d5b6472337b3f9508. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DEBD51500691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a87774ed6fa8341a7c3c37027d90ba6ec4f4b35cceea4a9fd617b407b482b4c. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:40:15Z), 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/DEBD51500692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc25d49c67191104775491c4a576445da66066df81ef1eed238535a46515b49e. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/DEBD51500693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e7aa0a27fb577282006ea8b9eb307e4274c95c914fe6cae41d337698a9d932. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:55:29Z), 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/DEBD51500694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196506fd68db3bf8fbb4b932fb51779ce5027566ae1c2fe842cf916b67f741b6. 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/DEBD51500695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b1c0139fcca1b70e3de409817b67723bd74d4cde8fc8b1ba22e7747bee15ac. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:06:16Z), 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/DEBD51500696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d24fdd7faac074d189ed4b15b9f68cb2aa30afdb7fc095196ea9dedf6196a9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEBD51500698.
Sanfte Melodien zur Entspannung und Regeneration (Mit Klavier Und Naturgeräuschen), Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854aec4e3fe9a60a34403db923567fbd807c822a53761aca0ef47687c83bf26e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/DEBD51600957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9063bc507935d90a1e8611b95fd991912c0def4278b99688a654bc64b24a961f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEBD51600961.
Piano Melancolía Klaviermusik zum Träumen und Entspannen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad941e019e1d1c4220b5e240fae8104c5cad83bff83addfd81fdce12eb5d131. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEBD62302441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b336a75d218f833ebcc6b113fb4f49c52f5265f8b27c7fe8d5f553b5be855b. 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/DEBD62302442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332052c75f26e8f64ece6fa82be300c1989ec6eb81c2600844cdae1caedfced4. 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/DEBD62302443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c1d6b7e08df86471b80417bdff54bed20ece15ed609319629c583fa3e82134. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEBD62302444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb973c330bbaa8e0f26f25f88bfd2953eb2611f3889d6b1dc2b2e0982c118eafe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEBD62302445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb39a0b1e307b360d3b0f4263f9a12cdcf25597eb5a8fedf614a0fd25f8fc3e. 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/DEBD62302446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba1768b4e36bf00eb1cde98ce11c78bf34c840ce89b70b2ef01566e48488f76. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEBD62302447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2b58726bf1ed0b63923dfd7139312bfad2f55fb6d421795ba3b0c862ea0eb0. 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/DEBD62302450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb63a15cfbd385477395c5f96af197e87f811f07d4d7bf77438ba9d0524b7ae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEBD62302451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f1cf38dc59bc10062ab1c25b6fa55c06cb148ee98152635dcc09d87bcd3d0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEBD62302452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f0f64645d1684c0ae7022c73c3ebdd2eb6895b03065fb3a212137fe9adfef8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEBD62302453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10da5c663af4ccc2f5f2dce68545d26327a56fb568be0faf004e9286e0dd35c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEBD62302454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103e60a4f13f53cbb29acf4216ac5c37a284ae454be9877c507bcb903d899c61. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/DEBD62302455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe170bebbe2d297995f294e6302848ac68999105edc15b0138f6444012b98eca9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEBD62302456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065877a3d506b47d45ffe94fe3bf4a13727a5611850fc8cffb8dae29ba7be5a7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEBD62302457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df81163202e9f28ec4efc6a0b409a88b6861bb358c62c54c8ed4e524c60788a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEBD62302458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba1768b4e36bf00eb1cde98ce11c78bf34c840ce89b70b2ef01566e48488f76. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEBD62302447.