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 0x8dc5da5d3fe2713a366a74afa1d66f2e32682012853f67a54189b4585492ed08. 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/dddc0820-8a0c-4c70-9c16-95205f7b20b6.json and https://artists.proofprofile.net/proofs/artist/dddc0820-8a0c-4c70-9c16-95205f7b20b6.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 0xc77a80d0712b44781f10ab5442b4c10f6102ed30510432ec1c9d88ad34d8ed92. 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/PLUM72400179.
Obudziłem się w Bukareszcie - Def Jam World Tour
Obudziłem się w Bukareszcie (Def Jam World Tour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daa76c3bb30787a0c37a323ebe7a96edc62154f185d2e442ac7f00afccbcf1c. 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/PLUM72400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6d52b5dca4e33b1bbd8882a6e58b854a867485a0e07bce00686eb00885c970. 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/PLUM72400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8722facfbd79a8e53a19a731f58aa163a13e6854423e1a2ef9dbe8cf752a9ace. 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/PLUM72400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002f6bfee9b2dc34ad1e90c761b5859d1aac47b579726f84864c27f48432184a. 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/PLUM72400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1f5792be9e199176eba82ead2b53bf13ccd3a011cf85980d8b1a96f7a0d196. 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/PLUM72400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e8a7f9077c0582ead6463ba58def2a4437581d0fdde593cd3143c5b5c60061. 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/PLUM72400327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55b1aedba216587f89b4ed297cb4b32773bc1ee4db5cba3f9cddb18fae9dbd3. 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/PLUM72400375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab2e7b0e4d66fa9a49c001841b5c4c8635c5f4a100bc73556ac51cc5efde55b. 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/PLUM72400329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaab96822bf9ccc4c3e6beaee7ef0c258f1ff98fed51a7555a7f2feb2f7fbc3e. 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/PLUM72400328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd8040649d0524dcf4fc9eca668b2e8f8951c5ea0533273d2294979f2320617. 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/PLUM72400332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab2e7b0e4d66fa9a49c001841b5c4c8635c5f4a100bc73556ac51cc5efde55b. 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/PLUM72400329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6d52b5dca4e33b1bbd8882a6e58b854a867485a0e07bce00686eb00885c970. 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/PLUM72400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67cb84e19f1a04c1e00fd28328be04d448b42267a706d9a40c01ff8d0d3149d. 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/PLUM72400520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f37060fa2a2a0693c1ac60471269ca3eede16739da0dc93e542d3c372d0c2b3. 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/PLUM72400490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff8120a0e6d06d96da7b50122d734baf8d295b46d44b121c3c4c5f3d25ad48b. 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/PLUM72400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff8120a0e6d06d96da7b50122d734baf8d295b46d44b121c3c4c5f3d25ad48b. 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/PLUM72400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f37060fa2a2a0693c1ac60471269ca3eede16739da0dc93e542d3c372d0c2b3. 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/PLUM72400490.