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 0x7a849724af4d398a84575ff71ef9950dc2af3ea4cc1b5c8aa2ce752eafd1b9b1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0808bb3c-cbcb-4e9b-9944-05d9aa30ef3f.json and https://artists.proofprofile.net/proofs/artist/0808bb3c-cbcb-4e9b-9944-05d9aa30ef3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Från hjärtat (feat. Hoosam, Sabo & Aleks)
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 0xdaffac72da78578db4386225e056f587c233f1e3e9f23c451bab4e32dc3cbb3b. 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/SEXZC1100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c89dbd9de4cc3cbba19820e74f6b8ba44230a554fd92b8360c7e056793b49a8. 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/SEXZC1100501.
Vill va HighWon (feat. Sabo, Ju-Mazz & Hoosam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f9ebc42353773934c7a752fe92a4a4428f90d863c26f25e7f0468563e38454. 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/SEXZC0400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaffac72da78578db4386225e056f587c233f1e3e9f23c451bab4e32dc3cbb3b. 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/SEXZC1100313.
Levande legender (feat. HighWon, Aleks, Hoosam & Grillat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e707379246273b1e160d3168c8ffb1df5ed8e1b6ee351eb73391c5b1fdd426. 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/SEXZC1400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f9ebc42353773934c7a752fe92a4a4428f90d863c26f25e7f0468563e38454. 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/SEXZC0400311.
HighWon Style (feat. Sabo, Ju-Mazz & Hoosam) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7d1d17beb9cd4e6f6450f4bc7bfd2f6e1132d4c17c30067feef9b36bcc50a0. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/SEUHA0201202.
Fortfarande dirtbagz (feat. Sabo, Ju-Mazz & Hoosam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fe4f13cd61b6270eb33b8cd233b90b555a36293d39c5f254d77bc553b6bbb5. 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/SEXZC0100304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c98802536c5b0306fe922ec626555251cd4c470358e113e8b2627592d4466c8. 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/SE6SA2127167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd537f7e3f550119486ee69f89074c86d324731198bb372388c0785ecd561815. 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/SEYOK1301367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c67338d8e7e594c904cfb191940157ce3b007073e2fd72e47c45762091c936. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/SEXZC1300209.
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 0x942eeaaec2362031c24792b8cae15cb68391418afa6d163904ee688f91e44ba3. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/SEXZC1105001.
Jag gillar det (feat. Hoosam, Sabo & Aleks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117a55465f7cfcaaaade1e96f227aa876bac12b868b62292d119f624058c045b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/SEBPA0600159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96da5f5c752ada3926514124fc7cc942f718716be355fada5291fc42ec91e58e. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/SEUHA0201303.
Aldrig mer (feat. Sabo, Ju-Mazz & Hoosam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb050ccf0dbd227027cf6f2e23afd32bd1c325c29681d53b5724a87cf7385b0eb. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/SEUHA0201312.
Softa till det här (feat. Sabo, Ju-Mazz & Hoosam) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8928155ad66f3a74b27823e7f11db8fe436eaf604f0a947d6eb0367cb0332618. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/SEUHA0201317.