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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa110bd30c8e0e8ab92a701cbe191f442c1d0f8a4d2ce7ff2550953f54f96dbab. Chain 2 (Bitcoin): anchored in block 953721 (2026-06-15T01:12:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b58f9b6-e14a-436f-8663-b1ac8ec831b8.json and https://artists.proofprofile.net/proofs/artist/8b58f9b6-e14a-436f-8663-b1ac8ec831b8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07ad7cb5f1c28c2b6e654c4c0fe671b0e34b1e670502064267929b227ba9157. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDKT1301885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99e52995b76b8bf8a80f7dc0e9f296d959d35f5fd93a3f890b2cf7c210dea5b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT1301887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa136e173f56aab6dedccd1395595c389b5b3fe990145fedf02498a2f2bfddb25. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBDKT1301892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e2ecee9d5213616f29fc1b715fa0534db71e263e946222b36fba9e72349de1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDKT1301898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a867ca8b507ed5077a5f2c0321fd697a61fa7c2db67fbb04303789fd1af42c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDKT1301900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2340564859cc29165748dbb52723ddbe7d0d9bb5d00353d17b915f1aaa74ddfb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT1301901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0305fdd43588ccf365f869d5f6ed4f95c102f7a5ba8463a9980592c5cb954b61. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBDKT1301902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c8c03dbc680f43c21fc23dccba2736eff7814edf23691bbb1b7f72b8cc3983. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBDKT1301907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe3fca9d8f38b467ec5a86559f88d0e726826bf39217a5159f6c3cf4c8cf144. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBDKT1301909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6b3dcc0fbea91ea9e2fae08e131ad120bd19c1cd93c095f45a2199d3cfae4b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT0701129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2ac39e482d8b141465b2bcecbd0a9292263af98d4fde3ca207a99deff0dc29. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT0701118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789a2bb4021277616437f77f405520781adbc1d86ad41b094b2501d440e80b87. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:29:02Z), 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/GBDKT0701130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92d52f2c9308308233e8909b8a77f94a597eabd08044f92ce602b829fa31703. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT0701119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78b0a19437b3dd80dc3ca2053008c8e72ee7671403530dee75a3da8642e2686. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDKT0701120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9014ce0035a54ed3adf69af235224db56243213142f48fa622184792cfe70d73. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT0701132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43d4b92b796b3a8b40bb207686df27aa6ae954d16c83e9bdb25da013717b886. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT0701144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d02f8bc2d496a3f89f4166b3299f1d38ccbec9d71d5da134cd8733c29009a54. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDKT0701121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9717264e7dfb66d05ba37b1be081854da1eef62627fdd5bd4c3d925f3eeece41. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDKT0701122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca9708b5429bb6525bd9d9c378562c22a88e04345189a9beccac179b307e66f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBDKT0701148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde62a121fe31e829694d2e4087de1facd5202a184177417f1d5234206c6f1579. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBDKT0701151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b219f595ba1a2b2663c7e8d4deaad7a515998eeeea84a74d2ad4d25c7fbffe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USQY50950847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7656453802acceac22a5a4243f8e602b77da93c7dffe79ff7e33213b10c8d5de. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMRTJ1400700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e93e74b0162c68a6039e29d8f6fdb0c25138eb857ec38ccc7d7820ee9709ea1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USTC90957946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2e32febd18d609ed351c331c9ba4197702efe04ed3fd31d18cb77ece031cd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USTC00955274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fab1158e0124ca877030a4440570dc3940414da626bcea0feff424bf19e57e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USTC00955275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4b4eb3d9fe8330bcea0d068edf88601efcd7c28c4aba7d5d9c1ae1b9ece0ed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USTC00955277.
Medley: Parang Soca/hurray Hurrah/ Indian Parang Chic/muchacha/wave With Santa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6eb109f1c1c9081bd2e69f6712a250c466630f5f9448cf38c0861eaaf21ece. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USTC00955280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a9a29faeffdccbd94580014c72754ba8ba9406e246b8398c041449f727d2a0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USTC00955281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec43b2e8df803250d9c5569fd574e3f181ab16b3b276371f7da09bfd186f58c9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USTC00955282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146e7c574943044214bde3286b6d92067bbd8d6c42f82ef20e58278ab2ec7147. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USTC00955283.
Charlie's Xmas Soca and Parang Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d5b567d5e1f4c1f6c514dc029ac94944d7ecca0367e90b8f7be4fafcb01aa6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQY50917227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0ba9fc051a733c0db0999db1585aef6029da99f625806a3c2e4bf6a664d15d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USQY50917240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec727faa839416afed7c626912e3dbd5d776d03948b2a2c93c64e4c85f33d76b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QMRTJ1400372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39889d06c8959494473436d9f5b8f8f9333a33b73988191304c21c8788bf1fab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMRTJ1400657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8236af0d0e496b4332212930c90e11907631d1e7f131c3abb3b8e415d2ac60. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USTC00919559.
2006 Calypso Compilation - A Musical Treat