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 0x8fa20097a03ff32ec546ece7296d1e55f0bd69b4b3980e7be457bcae2c296505. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb31d0ce-98e6-4d06-9053-1b19256fd83a.json and https://artists.proofprofile.net/proofs/artist/eb31d0ce-98e6-4d06-9053-1b19256fd83a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fc5ba91abf17a68c9f3a95f613ca98d0895334f99a532c53c6a638cd0a4268. 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/NLYV52200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c7b4929909373394d050887009bfcb0c8451585fce99d1551e8eb422f9e1a2. 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/NLYV52200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3454434c3aef12084f43c3fd94d7ba01024709760dcb603ca4b1a17ecff5cc2e. 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/NLYV51800017.
Yes, No, Maybe - Arp Frique Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19242a71d9bd883ce83e1605451ed9a630528c8e7229c40f6be2cf1a99c4565c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:01:13Z), 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/NLYV52200041.
A ka Titine - Dam Swindle Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97b0257e292555b9dfe7cf4346ddf2153a15b8653db3520e6b8fe121fcbe573. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLYV52200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a4ac4bf0cb204c9787cd51bfab171f32a6b6679e02893ba529046ca6fdfbf4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMEF2302437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd61799f7cce37f111be0afe92c5de4f2c9816da47a46d66751c7cfbc88a37a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMEF2302438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940cde23017b2d83e9d27312448d3ab26e0e0b2c0f13d02e9b77fe33099528ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMEF2302439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5436594a7eddd302e823f9ff6860c08e3adcd25b0729aeb05095e137375c48. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBMEF2302440.
Ewà Inú (Dreamcastmoe's Smoked Out Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9a714f72a263f015177bec05c764434b873fb7d858ce229ae70be3071fe365. 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/GBMEF2302441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437b55df02fb3e9a638bee9cd63971171bae448ec1889d00b8bfa7a99682e02a. 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/GBMEF2302442.
Dide O (Ash Lauryn & Stefan Ringer Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb609ca4da6d216ce1078aa1250ac95b0bdeb5e335e9c545318307044c6bb6e7e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMEF2302443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbf52db36b63a465f8c54b4bc5f77d27125113c1b0769d9bc5b3ceebb939e3d. 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/GBMEF2302444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d33706b467dc48628a137a76d13e565404c31bc6274e5004004af29c350321. 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/DEBY41200657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d5aea16fb652b8b0242e1b6afad243f97b2f44e8a64dec74abca057354a5d0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBY41200664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cb93d0e47d97f22d155c01ac8a50d9b7ebe0fb604ea02e7ecb5ec369c70dd8. 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/DEBY41200659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98a1303835e33aec32a7aee4720a9ca7bf8af169d3510b4e742651dff362f8d. 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/DEBY41200661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb609ca4da6d216ce1078aa1250ac95b0bdeb5e335e9c545318307044c6bb6e7e. 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/GBMEF2302443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50cf6334958f66f36d94c9f7485094010d8c0f8de08a500d4967327730cec2b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZPD22100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4249c36ab859a262540ede7d89b2cfa3e8f714344dfb93136e81a5f6645782. 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/QZPD22100020.
Life Is Back - Kai Alcé Life is Sweet Interpretation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9b7c0682f8c64870a83b0a5d7a16935de03e98c0d0701e4505fd72c37ec832. 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/QZPD22100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cfeee7637d5cedc5f69e6d7703c9e34f58ae9849302ac69b7eab8bef10c792. 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/QZPD22100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f3f0b4f5cc6c5882f3395c7b566167764d5d1dbd14ff1a6fa7eb21cf202732. 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/QZPD22100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb4ee47822803d2dce52a362aaa5aab7cdad4f3584aed8762c3f3a4767d84c9. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T17:03:21Z), 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/QZK6H2014385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5ef6570d82a436d3766b0e17193aea810682b6ad55fc613b94d93fb8655cbf. 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/QZK6H2014386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa205773fead6d4d9d1e74808f47824a589e9381d5b575ffa0f850c73a003e277. 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/QZK6H2014388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e4a855d1339af70a69596486645fe78ec6cb9f6fa09fce6f699a104ad91798. 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/QZPD22100045.
Dide O (Ash Lauryn & Stefan Ringer Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2943c93853c82a1ad3c9045f4f1603c25a4e4b1341f1d6f7fb8c591fe3946f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEG932404362.
Dide O - Ash Lauryn & Stefan Ringer Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb609ca4da6d216ce1078aa1250ac95b0bdeb5e335e9c545318307044c6bb6e7e. 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/GBMEF2302443.