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 0x9b57127994d26505301285148084f84ba40775deb3cc5502d334bca72972ee17. 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/61fff591-ab77-4a52-9eb7-3b80f4a41a4d.json and https://artists.proofprofile.net/proofs/artist/61fff591-ab77-4a52-9eb7-3b80f4a41a4d.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 0x0332698281ed534e8382da75eae192285c03a4b325982e1ef4d08089b23e1d3b. 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/TCABM1310843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4375a9d9a98b3774c0f63626bb1fd22b367f28aba03abdc10cf0b26ca78df7b2. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/MX3741300651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53e188bad30a2d7036b7b77d83b195758a64278d975c90cbeb3495ef42e0dcb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:29:01Z), 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/TCACI1593358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b843e73ab69b1ca3b52858b5fd727b57aed643e5672f84628d3e6b40820f81b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:14:57Z), 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/TCACI1544968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa825b0b7f5cd7dc0de4e2024ac91bfe567f6d71beae1804792d8e24653bdbbbc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US7VG1810282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572ff5bd18a44385581ac22f023bcc4ad27e42e960252d56f9cdc7a6758de17c. 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/QZGLS1911998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e004e10b1a06930ca3b594094ac9b8aaf492d497bd0a2ef8b3db1e972e1df24. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZGLS1945390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ab71364f8698cc6d4b108209fb65e00006dbb410c89fec0cbc91a2f2628cf3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:05:53Z), 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/QZGLS1945391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382ba2bd661d0fe4674ea359c6e0fc7e23dfd9ba55d168e5c14a8f157181120e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:42:08Z), 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/QZGLS1945393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e822de9543cca7eeb08cf0c08033e274a84167c92c8678ee59c7a1e13793ef. 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/QZGLS1945394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9878dfe6f51abf1e21cb45df96d5357c2374f1fb03913bd0990fc2e137e3fbbf. 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/QZGLS1945395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf272a3e15e0c88b79bff8a54f6c4da542fb47515cbd277f9f2ee918e3ea81129. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QMBZ92105065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf7260d04201bb1002903c7785dc2dca2825b47ec648daf2f48c801bad14dd4. 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/QMDA62152242.
Necesarios Adversarios - En Vivo @Indierocks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e7b61a14f149e6d0abc5b48d69955b2f51627707218fe1408fc236268723be. 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/QMDA62231645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8e44ba729643e42642f43ce8d18efa6a345ffa807e9386d51368333e9d0643. 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/QMDA72263037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b5d7d2ea6f43e79e2c12415005ca71a9d67e13a2627874e6f23501d7c6e4d4. 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/QMFME2224822.
Laberintos (Soundtrack: Un Tributo a División Minúscula)
Laberintos - Soundtrack: Un Tributo a División Minúscula
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c8d72e1ef7d9f30b780b4a2fd515711ff55c277c8ac2ebb6f35e77725866f0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMDA72458581.
Soundtrack: Un Tributo a División Minúscula (Vol. 1)