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 0x2c85313dc0e4b0b05f58fb89d41ebc4fcf2b5c6690a2335c2d6ed66d21fa0f99. 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/e33c2a08-0824-424f-acc1-5a7b848db726.json and https://artists.proofprofile.net/proofs/artist/e33c2a08-0824-424f-acc1-5a7b848db726.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 0xc4fb74453cfc55ca21a67dbf413eeaafabf05440b665f8dc50451b4a1e35bef4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NLF711603605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b12757c5433ab6e95b5a03c9946fd914e7dc441912f55414bca3a07af32bec7. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DET751700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553f800b1e76f40c4587bc4ffc23c62dc69b901d6b14f5688a30d136dc9590af. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GB7NR1922401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5292fbfbd7dae9cf195ea7b63c4a5ef9d68d30971aabef4c6c3f00a0e88007. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEBE72100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbcd427a510c1c3039982106578cb28881fa0c0fd88711334cf37b690b4d34c. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:02:06Z), 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/DEBE72100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dec87ecc9c9950bbd5aee06739cd56c7c5d67307ae3c88ad3c65e54d5759738. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEXO42221603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824b01f42a3c5215890b7f2c152aef5b47f46158f496ddce95d9124533587cc8. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:36:04Z), 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/DEXO32235881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824b01f42a3c5215890b7f2c152aef5b47f46158f496ddce95d9124533587cc8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/DEXO32235881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb911187d53122163e4f65e73dae48265522814460a4018030ead9553344d743b. 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/AUVC02488011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739de89f4942a43721ad9d866303cd9df446e85780978e7e1fde82d7a513454f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUVC02488021.
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 0x7154a141e94eaf4bab968abec8eb0a09e45d010b1edcb8abb44e8e1c17210529. 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/AUVC02488031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0abb2acbe80ae5bd0a0c60137376ea903f01d0e2e3a2c8968ec34fe3aa6cfc. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEXO12464527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ba9d3276ac6c3e275f008b0ae74b63b74390cca0af81ebc28970c3e56a4144. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DEXO12464528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06c05c2667ebe56ca51ab09a0481c10f8296018d4c702fd48e26215adc1f1e9. 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/DET751700033.
Dancing In The Night - Roland Leesker's Ba Ba Ba Bam Edit - Mixed - December 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326abce12f741ad1a1e39fb19a63bcd37b8b26ac4f5453a61d0ad122787c4ae5. 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/DEBE72200830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba4b002f24db67f20467af9897f487eb570abbfa91ed3d8ff3afa2e3f334939. 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/GBEWA1901660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76cf21058ed69e92177436a441f433e16742ecdd46572fdd36eacd913ea860f. 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/DEBE72100316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c6abcb5bcde16c620a78f972d26d60e8e2560d875d2d685c7ef0219f13a48f. 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/GBKQU1935263.
In Search of Sunrise 14 Mixed by Markus Schulz, Gabriel & Dresden and Andy Moor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13be95980b75771007c549ddf916ec7ef98940c14e0a340d8ac56ffd85894a21. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/NLD681802355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44efe5261d73a6fd23da6d47e2f997339ab2aa8b6721dd833c2f0f36334f8f42. 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/DEXO61966869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa7e7db670797d076f6b6144999018af71ed95c09de9cfa795817e55325b6a9. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEY471983961.
Alpine Grooves 10 (Kristallhütte) [incl. DJ Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dca82ff1b0fb5caf642618c9890bd7140fbe672efdad7885bd81ea509c8a5e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEBE71700721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa433accff023faca31b0c477e5d2b7e6ac8f7e044ba4c7f2f34dd99bad6db709. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEBE72400307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fee185175540e59c5a7e57fe2f3ed028558f0b73322acc0f59d439d1e0230f1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US83Z1817139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b61f9bd3e193bdaf3e95fa86aafd0d9c42abb8dde5fc88f1ab0675e33e3d4d. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/GBEWA1901662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06684648106886f603d95a83bace6f855e05242f87cf75207806213b88502ce6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DET751800003.