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 0x0b8af882076e744f2e6965ee3ed0d8adb276eccfe30d47af3d30861454ae31ec. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82bdd4aa-1002-416b-91ff-9792854f4d55.json and https://artists.proofprofile.net/proofs/artist/82bdd4aa-1002-416b-91ff-9792854f4d55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Love Will Know (DJ Spen & Karizma Remix)
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 0xad24d95f8218eed94b1bd5bb53116fa2f2c84784c670a058c7ab85b625880dea. 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/GBCPZ1916297.
A Deepah Dubbin Thang / Epic Proportions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a005a1bfeb5a6d32406ccef617cafb8e687ebfc0a44d23a03afe39419df402. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBCPZ0200695.
Groove Odyssey Presents House Legends, Vol. 1: The Basement Boys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8170c213d0dc5348f8c8524a47be40feda02171ce6bfccbcc0d17c99529131e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKACT1561768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70009bf70c9588bfef58c854642ced728e0e462792afa948d2ac1bfc62fc439. 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/UKACT1561769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4a1e7db1a669debdc75e84d3363796e11f1428e49e55bae6bef9f6d495f4a5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKACT1561772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab685ce559148d3ee5ee318ec1cbe2145699269074e1b6c2f5f5309bfcceb75. 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/UKACT1561773.
I'm Gonna Give It to You - Rochelle's Revenge Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d91821b4b4a73e7f79c16e40608e24017b59d6b1a7a6ea26bbfb08d85932f1. 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/UKACT1561775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5047f9ec7dccc7a99d0fbd33532826be62641f7338b340257499331660ab311. 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/UKACT1561777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec93ee61ae5e71b06b6e7768006fbb1e52b919565550cc2368c8e4cd0521deb2. 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/UKACT1561778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe182fc2be285249bdb40f75416e4c924e84d2dbc321b6c5ef21ddaa076017f69. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UKACT1561781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb730bbc40e6f4ba06b5c22f65d97a491a7dcc7e33855b87f48d566447e7c6719. 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/UKACT1561782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8334a2936aed8aca2336dd12b092ad8e407ce7e143c7ff9783c834890947b1c1. 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/UKACT1561783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd921596d21c423337ba8fb6ded8423401cc2b1f87aa74cae01304e4ff10adb. 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/UKACT1561786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a005a1bfeb5a6d32406ccef617cafb8e687ebfc0a44d23a03afe39419df402. 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/GBCPZ0200695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7a38f43e74bcb2bf8c8e33e96e14c3ff97bce02428974acbcaab617ed0fe1e. 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/GBCPZ0200698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde9a18f19fa7fc14a74827c65fd0738b986b88fff5e298bb3dd7db73eceef90. 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/GBCPZ0200699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ef1b2c5716ef7129b70b5235e0d7a797a6fc69619ecdef7af1dc0d0d607348. 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/GBCPZ1916300.