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 0xe619b73a9140cf3dda3e584dc0f2575ec18b5f7815b01cd217e3120c33434458. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e08b50e-eeb4-4d21-8b41-1c55f0a49b09.json and https://artists.proofprofile.net/proofs/artist/7e08b50e-eeb4-4d21-8b41-1c55f0a49b09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Turn Up the Volume / Love Situation / Don't Stop - Single
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 0x04f8b309da9372796e345ab363d2684c9facad7d2cbcb69ee1a69a9f14ab0349. 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/QZ5FN1774969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8268a638a3cfa65de77482e96aa9e7ba9811ae9feb97e5e7ec910d509d59cedd. 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/DEW871802219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002c7c73aa209f2f1d7f992f55b1d3208ecfce5823c92f85973ead5f65e7524a. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ES61A1600770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f787832ba721f17a08773e3c891059e4ac7cf8b2ff4d539fc5004b813435e1. 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/ES14C1840062.
Let Me Hear Your Body Talk - Radio Edit Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b2f66cb8ccf6a434c0d6bb53ea39454b39f6bc16461ac1130650b95df15293. 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/GBKQU1851187.
Real Things - Carlos Martinez & Uriel Ramirez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e912469316eac3e1702963989c12e7340a9cba0a79f0d983175fe1252da2ce0. 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/ES14C1840064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4fea14678c4cda03ca8c710c117cfd19a1035360d51c14f63f2a14244c7428. 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/UKKGA1800001.
You Make Me Feel (Mighty Real) [Taito Tikaro Ibiza Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ea94152334d3a848dd4b0bb5529a05a95fe3df41cef78d617bfc4820525461. 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/FR59R1813903.
Matinee Summer Festival Compilation 2018 - Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c425385e4d0d10122ce46070d4a5e453bbe3434603699704452bfc9a2781d78. 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/ES14C1840066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbb54a500d5ab12efbe5d0b0303fd2bf7f602268f50dc804182b908cb87c926. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ES14C1840060.
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 0x9778923cfcf5261ba15254c307376b875db96cd0cf529702923d9eea3cf77718. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES14C1640120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3dbf8f54806a48a659afccf63f7343d2c9f1e8a22e9835c9e225e5bc48cde8. 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/ES14C1640121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b7fff1c7b57e7503044998b6c12ba8258fc0734410592948c117b12b53306c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES14C1640127.
We Can Make It - Alex Acosta 3 a.M Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffa83debf09a119486aecbe5dc9808457ed6870def1f9c87e3f4cf872e94bc4. 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/IL6461600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919ce8ddd15473f9eee7b4c4c4d37b8835fb0b8a1f8bdea04d7e89afc70ee4c4. 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/GBKQU1697902.
Matinee Winter Compilation 2017 Session - Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb517e869650b6c19c1423e9c5364489489feb4edeb4700b78b1d38122f7a65. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX201668855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32328625e296d91e548c7400b230ede98a9d43948e1da38015745168e70fa6c3. 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/QM5K91500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0b542f0e1f60d70b461cee69f3bca85920e83fb0336518d5e966ab0712cef8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES14C1540101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f80c184c7ee0b86f1f9d698736540025158782235e51b149dd25eada08f6fed. 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/ES14C1490040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf427c9f738020c2f880d06f82c4a78afb7eeeac3860c191461102ea1b3428d78. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/ES14C1540131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fe945b326305636fc1af2ea2966ca6ee7979fc2503a52d5825eef8d7bb1469. 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/ES14C1940010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde62c0ecad77686da027e1b7c760ccbbdf9e3a54346c73e4a47b1c3f633afd04. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES14C1940012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e98fd0cda80a25a8b6ed713be421f6ccf871620d9bdab8ae88e5c57498a2c5. 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/ES14C1940013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497338cb20dd3ff7b4163df97a408b23caba0fc621186e648ddcf67872421943. 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/ES14C1940014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b71a1722f1db5fd4351afb0092a76ffdccbc21f0f4ca254877033c24f8370ed. 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/ES14C1940017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77a0515629638a1020aef9a5800ec7304489ca20d605155f9149beee679bdee. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES14C1940018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ba8ac66b6feb63f8ceccd29458e1b570dea4e10b236cc1bed44791a877ecb2. 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/ES14C1940023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821f27fa97a9fbb8e355661d706ab823bf30b5b3fa9f5d6b0dbeb9846faf07cc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES14C1940026.
Matinée Winter Compilation 2019 - Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65d5857b8927fd8349b7760ab5c568ce40caae1eb76f58a1919eed2efba8478. 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/ES14C1940030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aedb6086186c415544f9ed049a493453871363602e4e429d33223641e87e3f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/ES14C1940015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a55f4faec0c7fc3e0b01cc196229d85c7bf9743378fa47c587f25cac3485f9. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ES14C1940028.