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 0x35adac8d4dff0083c5fe40e10172ea734780404bcdac54da9a17bb0f110c2f91. 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/fd5207a7-8fde-430f-b090-54cc26e5b436.json and https://artists.proofprofile.net/proofs/artist/fd5207a7-8fde-430f-b090-54cc26e5b436.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Compilación Musical de Lounge Fácil de Escuchar
zZz Mezcla de Piano Inteligente y Elegante zZz
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 0xa6992dc2e8decc48e9772517ce810ca969583d9fa780199be19249109467fe80. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GB2812003473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2680884b91732486059c67db1ebbe7286cb880dcec668a53d82dae66730022bf. 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/GB2812003471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd71e65bb3fb11d405337e528782136252bec7218d663ffb815d8aaa3c7ba1e6. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/GB2812003461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cffa1e15bb0ee8a0d6bf478fecefc260cba8e52145934948c39e37a37089b3d. 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/GB2812003490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4aa1513f7512b993a063f3d51141b32445a7a60d0aa68146246d5dd8023f11. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GB2812003480.
zZz Pistas Musicales de Piano Inteligentes y Elegantes zZz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923a50fb274c3955a32b03497829e6e5e19d17bcffd438f6a58ec322bea86e3e. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GB2812003478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc13f8d15d56f6e0e64cb5072a50d2801fbda475855dfaafa6e09c93aaaae3e. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GB2812003483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f381f100ac28f9bcc4aa50ef8cd36e62f6488e3282c123f731245d28fea608. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GB2812003485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055b59c06cc47214d1120c74f182e8e8bf3f9c970a7d6c5fde10b04e7a69e02a. 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/GB2812003468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60a45385328310bbca93232fec4eb8d348bb4456a1e3ed9fb9f67723817b60d. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/GB2812003491.
zZz Canciones Conmovedoras Terapéuticas para Estudiar zZz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ff1a3b2bbba10872c84dd7c3ff648b66789d9ce110ad41f35ddb6ecc6cf87c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GB2812003497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe003a17b26463a0b56c465eb62a533b480b783e4076fab366ad3ebb47d9166a1. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/GB2812003479.
zZz Sonatas Reflexivas Terapéuticas para Enfocarse zZz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208d943582aba4609d7c99f067e45e9162fbf9173bfef8a0fbc3141f657b4a9f. 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/GB2812003472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3342729550c99ac449ae4a6103016ff37ae4e83d23ef9cadd50063740e78ca7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GB2812003493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e0d670e544febd17b734daa7c5a45ec2a0039c937838c1e7ac5c16951ea22b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GB2812003488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8642a4133d001cf54562eb79af26d8fa89024b9a4dce973c409e209057f31b. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:58:09Z), 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/GB2812003500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0216ac7b74ba26af6a74b953daef42a8ff1aa487c22a43835dc223b4bbc10995. 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/GB2812003482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a27f0bdbc5533a3b23a98afc9a080ffd6ba87da4cf1216cc10b2b9c1bfde77. 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/GB2812003487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f00c1def0bf5e07ba17e792ae11b29e74f9365e942ae982d148f3d476921c9d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GB2812003495.
zZz Sinfonías Clásicas Terapéuticas para la Concentración zZz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114332c4ec1283775c034543d84cdf9c4b84d29fcb52db3a26862d7bb3d8f01b. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GB2812003484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ffa11d8bfdd249512ad43379a183a325a22dd22474487a61d9cf1702c44aea. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GB2812003470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4412c275286b53acb1fcbb942785f29211d42cbc806062ae4c87823dd6d2a8e7. 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/GB2812003481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847addd9c8edd47780652dcd1348654a6903d8890267718c36bf36fb1d3cb046. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GB2812003499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bd71855a453576d0a86496e691e33c2bcd19c8c4ca6ace20e204220dcdf4bf. 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/GB2812003469.
zZz Piezas Musicales Suaves de Piano para la Concentración zZz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2c1ff9e3a35ed321a60b9a8ee1669f5ee50423d4a7a37236bc38c4bb73cb8b. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:13:59Z), 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/GB2812003475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb131dc7f53135f62312f0167f31cfd51c912e2b9d06cd4fd05cb45f93b040d32. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:46:54Z), 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/GB2812003474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2392ba8b205d1459e5ce4d8ec4705a16cb48fd4f36dd3f4b2e44ae51827429a7. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:08:45Z), 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/GB2812003486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002337cfe097fe144695e6abada22898c6e16f154c68bb7a2fcc343858dfba73. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GB2812003465.