Silk Sonic is an American musical superduo composed of musicians Bruno Mars and Anderson .Paak. Maintaining a good relationship during Mars's 24K Magic World Tour (2017 –18), Mars invited .Paak to rec
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 0x9cc98b945997cd8dccb52637c50a27428917329e35f9398a131c4b57df2663b9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e44c5bf-a2a3-4a9f-a7e0-e7a26b7b818c.json and https://artists.proofprofile.net/proofs/artist/1e44c5bf-a2a3-4a9f-a7e0-e7a26b7b818c.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 0x25474419924d101993795cc975c9096d979a8529918a8acbbf1595fcbeb34e9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22105952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc57dd096b385ecd81fc94ad48e5a6c92b1a45c2fb05e77d2031c8937efa305. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22100909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7d429bb757e074ad9f61959d29c7e9f253f1145e109aa910ac11a983797d27. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22100906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab367ac7424b6f163f2d8749899f3f77c05c4c7c2f68d6b75524a9043d5aa308. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22106191.
After Last Night (with Thundercat & Bootsy Collins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29e322dc2d5287016bf4d215752553cf4399e43d99177d605ec2b3df48e60c4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22103103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661fadb62d657768a52af3d15c3da53eea8fe45362466de657ed7a7862d7bcd5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22106193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a06e83ad04f446c457624cc9a4b1121568bdfa381951d9fa0909b7dc3fd713. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22106194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a0feb8c2a5afab32073c9a8752026768fd809901508b757dcbea7031e34f79. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22104222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95dbe525c0c743064e1f06a20d4b1138e0f38f31b868e318471f74bc61a28e5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22200966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89a98b599faa443ddf94aeffd4d64c845d1837bbb8d069115e7ebabfeabe4ce. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22106195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0465d8fa456ed97984170b1f3b121153a2ac47c597419bff2489bb6c89665d7a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22101351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7d429bb757e074ad9f61959d29c7e9f253f1145e109aa910ac11a983797d27. 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/USAT22100906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95dbe525c0c743064e1f06a20d4b1138e0f38f31b868e318471f74bc61a28e5. 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/USAT22200966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7d429bb757e074ad9f61959d29c7e9f253f1145e109aa910ac11a983797d27. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USAT22100906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7d429bb757e074ad9f61959d29c7e9f253f1145e109aa910ac11a983797d27. 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/USAT22100906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25474419924d101993795cc975c9096d979a8529918a8acbbf1595fcbeb34e9b. 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/USAT22105952.