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 0x4a1ddd1dab9529fda6c64829db20ed123325aa59fefc1ddf84d9a4457e597a54. 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/bff0d70b-b7fd-42b9-8ce1-eb6325d570ed.json and https://artists.proofprofile.net/proofs/artist/bff0d70b-b7fd-42b9-8ce1-eb6325d570ed.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 0xa17a7c2d5910bef0d45a1d64d27ff19715d653e5f90f46385638a514ed25287d. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:02:05Z), 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/BEV261200100.
Clarinet Swing (feat. Dirk Van der Linden & Jean Van Lint)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48422d28dafb3b1679b459df624d116276165a366cac2634e3e13b236dbd6cd6. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/BEV261200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177d36c4008178478862bb784f643b914eee425a8f5aed61c9319f81f624ea1e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BEV261200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966620eebf9ae9d5a0b8a9d66248d02d1b6991efc3fca53abae7f9977ec5188a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BEV261200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a48c9887a3d1a216b4c594d2ee2164abc18fbd2460d85e89fbac2e2f536495. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/BEV261200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab75f104b8415f2892b564baa46a88e867a3c95edaaac8e145cd5d1388f25600. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/BEV261200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a45a71f6c982e65749ba980ace6192b483735483896c061b450c04103cf80f6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BEV261200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed8bc11a8a9e464aea7faf855f012ff25eadeb685bb20e2008fc6f654a9ce0b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BEV261200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b3e57fe5c0e567b09918508cccffd745e220c2523971573dee838761bf7523. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BEV262000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3942b3b8ec58d50d41d16af82d9b39dc7bec17e1dc6ff1b326ad2c57acf41ff7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:26:13Z), 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/BEV262300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8362d4849737561b9e32a50c661e816a24fb925dbf02891d37b81d71ebbccd1. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BEV262300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdad05449eae85956c2f034ad8f3a62f6a0f65172420e387c34542cbb010b92d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BEV262300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3961bd2e865a064697c07d6f7520b88caaf4aa4eecf7d4022186ae5fccf27255. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:04:04Z), 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/BEV262300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f9bb2514de9184b443d2cd65b4d492c34814dbe5d425300e41f455aab34fdb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BEV262300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4000cf1126a4cf62e9171ddd440a1a0f4f36e58b9923d670ae967dbdf0cdc0ba. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BEV262300050.
Give Thanks For Simple Things - Deep Groove Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f48349affb952aa09bc84a88442803ad086e1cb5cd0d0dd4110593c9597a1c1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BEV262300051.
Life Is So Much Sweeter (streaming edit)
Life Is So Much Sweeter - streaming edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4294407900b866a3c883693830ea038147fc6b2c68bbd57bb271ebfa8f80a3b3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T03:54:11Z), 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/BEV262500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3c9e85300b1dc81f4f8aef5236ee6cbe0ded564b962c350272e9df3f73f2b3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BEV262500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a75e74cb94063041d7ddae7f2a44ab18c98f26f5a1a6e4f3673a9570a6cc45. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BEV262500051.