1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x68d2d92de1547311f9e85f48b2989e56552ff09056e1c52f80dd67f47458b4a1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac7b4ad8-1fdc-4661-b0d2-96e864c32a34.json and https://artists.proofprofile.net/proofs/artist/ac7b4ad8-1fdc-4661-b0d2-96e864c32a34.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 → block OTSBitcoinBlock must exist at that height 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 0xb6a15c04b319b74723f96935df435464bc17b693f27ca35402b6fcca4aae6c67. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USCGH1825370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0604abbdac2fb2de7285e161e015808c988ecf3e67556a7263ea4d2b1f7deaf6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USCGH1825626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4530e605ae8a7bb662ea6695cb6cfc7b7234ee7320160e9ce437fef46582da. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCGH1825627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670224957cdbf885b5077b7f6ce83feb004107a0d1a0545d9f8e86fd396f7742. 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/USCGH1825629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27151326260e96bb99278dccd406a0d74c65782277e4b3dbb9666e7f838012d. 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/USCGH1825632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c92e137935cfb85fc5966c7bd3ddac32c4ff578fdd4b8c9c5e402a359e7edc9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCACR1657196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaefc0738d1f3384482f5f32ddf759b6a13dbfd0b73984ed0f728e03c4920520. 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/TCACR1657207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef849bae64394215bffdeaa6cb3486bd4a9f926fc14a362e5862e2648167f494. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCACR1657208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb9eccd523e4d6c81f94059428e2cfa01aafa02241ba12f2f1f31486f5dcbff. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:08Z), 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/TCACR1657211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc43b8a12565907a9236af7d16d7e908cb73596f43a5f638010414b5077e3f8e. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCACR1658893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d092ebf417603e53148de6416c5dc2dc3abff527220c0af0936727ff03e3896. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/TCACR1658896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ee2d4d81fb1a10fb0396c17f1c0d197be79499e8496b028ade4dd787dcd8e2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARFE41800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4572cf5287375ac7a8544bbaeec6d689e3e0dd7bbded129081a479f2f5ee3378. 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/ARFE41800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473b8c777ce23a0bc31d6f525fe6381c721c9313fcc3fee40b18b5814308535b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDY42110939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1da64320ae7ba9d4bf093cdb72e46d2dfc72a81fda193250f7dbd6687b5ed67. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USX9P2387375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cf7f4a99f594e8416baf0fb28134f23a1cfaf2579785f4299692b4584f59cf. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USX9P2387376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68a9598d8faf985f123a4b28986724b9fae0d9cc1320f32f5d53f4eda7f79cc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USX9P2387379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a43bd386c6a863f6b5449e72dd901a1e7313fe01c07b2f7925e1118a2894870. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USX9P2387380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd714130394a340e850153a2e239f08dde97c205befe4075488ac7e5a0455d621. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USX9P2387382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7850c3a3762db59bc7ed89ffc744379837f669e8d9e74d785db1617c53d5efdd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USX9P2387384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176c6cf007b89c33799d4cef7917328b8f8ebbe1e0b7c69982e2352b3f6c5022. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARLVW0126508.
Tributo a Rata Blanca: La Leyenda Continúa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ca5d112d47114d7a23fd2f5aa6edc7f6bfedb419932a7839ca2d196d2b5aad. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARLVW2800106.