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 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 0x8bfa029bdba21c3fd4fde3e066ad84300aa5f3c40040f0ecce69620be24f4e8c. 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/7f595c2d-1870-4ada-8036-65944a7a140c.json and https://artists.proofprofile.net/proofs/artist/7f595c2d-1870-4ada-8036-65944a7a140c.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 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 0x6fdd4a445d835a1bdbe2344060b178f25f774b1feb9ba255daff68892b96958e. 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/DEPI82402429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a150410ae1b252743b64b04ed0cb5f64e0f77dd63def55a0d1ad14ec57f17d0. 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/DEPI82402430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfca573077e9c1ae32c97e5d6599f7cdd9313ec973a02793312e30e0c7cb386. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEXN92432996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e784a11fa95c8a5d6c6bbd278ace4bc2cf334193940bef97db5a4c81cd62b9. 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/DEXN82448732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acd576ba6116480d4ca142d777cce568cad8639763a0d764cb006a73c50419d. 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/DEYQ92400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59b0cfca3757d8fb5e6029d2d0532e073277c7e19e0c35f3a81693b3677b6f7. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/QZMHL2343096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f433c291969fc420c7b4a3a35b2b469768d0e02085af84654898e9594fad3ee. 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/QZS652238204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f433c291969fc420c7b4a3a35b2b469768d0e02085af84654898e9594fad3ee. 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/QZS652238204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae912efb0df9a6f44c3a22cf3ebc9d0b8c67918d3d45cb4856bc93b58eb35df1. 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/QZS632237201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8ef85dd26128aa1eed87db98fc71b002e70be177b44ad37c448137e5f3d9a5. 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/DEN982242191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf4a806845ea4e3fcb9cb5545d6893d5de77b85828a686f1237d0987b40b0c9. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:48:59Z), 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/DEYQ62000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ebb1983ce945f7cb72f6ccf6ae2e2d454e6907450c71e9589cc78d95374d33. 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/DEYQ62000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcda2a72c178535d12f67af4f4b5340332050244d78374b6a57e4ecef4b13b4. 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/DEYQ62000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b12e74848f70b8e52d0406d95fe7cc864418ff276eae1500388680dde99dfc. 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/DEYQ62000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325fe0ffa7ac2f9d2145ff59c7b3818d713190512b6c6da03f395e316b5b3b28. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEN981640653.
Fiesta - Michael Mind Project Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b0f99c17f9afd88e9a35806edbb5dbc043b16ef745876af41f89cc09f90e9c. 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/DENY51000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c2fd8b145d8987127fc1986729c8602aceb15a1477b45e7fee4fc77d0ada82. 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/DENY51000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2490841cd403ed69b6a36eb0d2752abdb492314b3b24e0f7a07efe49d2c20c7. 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/DENY51000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869d70786fd4aa28590115c85bfe9ed0ef6fd84ea5b53ba83ad0125cdfdf4940. 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/DEMA61902820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef91d3963f8bfc516d5bef902e1ee359b182d35f88b823c1cbf193718a892fe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEMA61903252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd6f2871e1fcd786ec50ab92c474520c1509c52c044323dcc72fe7272210799. 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/DEL712110153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57657e1eb20e2d6878d65ff3183afb0dfe8a8cec20f0b605616f0b960ba0d175. 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/DEMA61903570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270e24308e844deb190682d6b661d2eda1660500b964cae93b6d68502d254ada. 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/DEL712110161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac748383b8edefd654571e32da3c69ae48eb11f495327f7c38b695dc6ef332e. 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/DEMA61903500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9ff210a6cc3ce51c3d19fe82c9a43fe64d70efb8d124cbe5d4e36dfbc9be16. 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/DEMA61903660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b2dbea381fc6659402a465409d75fbda283fac9c96ca6789b264f1381df28a. 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/DEL712110187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9522ae1529bb4c805766f99623701f440d81ef67904814243f0b9595346698. 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/DEMA61903171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bfee0a46d8a52f793417a223d4ba49f9eb3b469a970f67cb7cb42dc5137a45. 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/DEPY32100249.
Chili and Sugar - Balearic Sensations Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329ccac145268ca85968d82219ee0a95c3dc512d099de3d5e7c533b70d46a1d6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CHB241907922.