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 0x06fec78195867cb8006ea10a286e2ac9ade9b731f8b4b15d8b393beab0012cc1. 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/2e03ec9f-3c41-4a60-8ce2-b8a5dea98854.json and https://artists.proofprofile.net/proofs/artist/2e03ec9f-3c41-4a60-8ce2-b8a5dea98854.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 0xba9a56ce041845d5e57d4b762edd12b28d6d9e1d9487633732d887624e5e475a. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/CH4882500301.
Lose Control (DJ Antoine & Mad Mark Remix)
Meitschi tanz dür d'Nacht - DJ Antoine vs Mad Mark Mix
Meitschi tanz dür d'Nacht (DJ Antoine vs Mad Mark 2k20 Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c102ff098e9d6bd40c3d9697e4af09c6af25dafa4df13df0ba9d2e745c22a. 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/CH4881903401.
The Way We Are - DJ Antoine vs Mad Mark Re-Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7815f9a08e32bb30ffaf90b32df041e71d28b2bac1631e6843e28b5af2d7d2. 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/DEN061101875.
Meitschi tanz dür d'Nacht - DJ Antoine vs Mad Mark Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8dcdbb526ed25b346ee37f965e475e2c68ba903c0d2ab479e48cb43ab3d458. 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/CH4881903402.
Bam Bam Bam (Put Your Hands Up [Everybody]) - DJ Antoine vs Mad Mark 2k21 Mix [Mixed]
Kontor Top Of The Clubs – Best Of 2021 Mix x Best Of 25 Years Kontor Records Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66f944c6eb6b5efbc0028c5560170d3542af7cb6ff578a1f2bd8797f688e748. 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/DEN062101334.
Song to the Sea - Rene Rodrigezz Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfbc7a07cf44afb9d9ca69eb9e8c5c244cb5b54849bcaab3270bb8ef39a42a5. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEN061101859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fb305f90ef20bd6cec5f5b49df8db3174b2eb78249113ecf426284a9dff20a. 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/DEN061101860.
Over the Rainbow - Maxi's Stiletto Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803834136dedaf9ed3abd7ce8afa1cfb8fc44643a9a7f34fcbe32bfe45043170. 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/DEN061101862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9322b244e891d5d055d743449546631b0265b3a57b000d0ed91713eebbaf5f1d. 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/DEN061101863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b1dcafd59af26f4d0888a0b7d07feb6e68f441c0b177ef4b0264b5346c2e7a. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/DEN061101865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356fa1383df892e96d50c6fcc12bd5a502e43050caa1d6185f5083f631b7141a. 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/DEN061101867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059d5ca342ed0e92d5c53f7a93f139ded61449cc17fe209101aa638dda4a5677. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEN061101882.
Live It Alive - Mischa Daniels Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41324ccb3055c5333a8f994a94a61792d205db90b32c7adcf6bee765e0f661e. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEN061101858.