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 0xebb40e6a87ce416d778297964597804891ab74145ddb3a45254984d3a5c4233b. 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/4b70b58f-1942-43c7-a123-5d47f272a862.json and https://artists.proofprofile.net/proofs/artist/4b70b58f-1942-43c7-a123-5d47f272a862.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baddadan (feat. IRAH, Flowdan, Trigga & Takura)
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 0x8a686a41f002a0e9039043169cdc23a3246b5c77f733498550088c7ee8fc39ce. 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/GBUM72306881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93549666a4c2b29a6bd5c1107c25244dc897057a58a166b444b477fb63aded1a. 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/UK9AV2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae59bd9923d0bd6284601ed4378ac9eac9d195ea9aaf88fb35c04a3767babda. 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/GB8KE2404899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbe62ed9089fcc34d7d5692b314fdac2f05fec973c76eb7c5a8f6e652039f4b. 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/GB8KE2203214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03499c48cd5195a9955beb0e3a8c65b85e02215fe3a122ee334b3a08d62af1f6. 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/GX5HV2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17df51206c1b2db10b3e7176b093a0265d49d161f0f5dd00ee6c046bd067487e. 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/GBCJY0712604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeebae6f22bffb3bada898be72cbcac4b9a89204f4fbea08bb20515a5b04f043. 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/UKEWB1600283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a686a41f002a0e9039043169cdc23a3246b5c77f733498550088c7ee8fc39ce. 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/GBUM72306881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c509a9188e35081e0856cfef59823be6451b4b47b3ce1607aacfd84ca623fb. 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/GB5KW2102873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3773e485b8a17c9f022b64a3df12b31deabc14e9f0909af1f4bbccab34f7a6c0. 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/QMKKH1900458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a686a41f002a0e9039043169cdc23a3246b5c77f733498550088c7ee8fc39ce. 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/GBUM72306881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93549666a4c2b29a6bd5c1107c25244dc897057a58a166b444b477fb63aded1a. 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/UK9AV2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5db369a6f64fa2866a3838eb16aee6eb33daf8ece9d7efb2ea9643f8e3db8d. 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/GB8KE1956185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd0cba62d1fdc7483b3b507a5797af8ae19622d442334798d6b2cbb4c08d964. 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/GBUM72305585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97e0a6429b53e0603c37339804c3b622b5b67a08fcaeab305c97d8ed71cd59f. 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/GB8KE2055700.