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 0x67836eba7f01f253a821be44924c92a6e1949e09d5849fbd7aea467d7c55e9a2. 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/ed8ba8c7-f0d4-4bf9-8917-e34b030c0ceb.json and https://artists.proofprofile.net/proofs/artist/ed8ba8c7-f0d4-4bf9-8917-e34b030c0ceb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
RLR FREESTYLE (feat. JUU, diyarue, serko, LeoLaBandit, Benoua & Adem)
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 0xd2af9f48f86cb1cd9c9fade456d75b9b5d6d6a1fc25d507489dd20dfc3da0e54. 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/DEKF22401530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdae2c66bf50c1b9cbcf9998a66da8e885c1af04ca17ef8fe3828bb1234f408. 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/DEKF22401120.
RLR2 - Runde 3 - Tag 5: Wenn Welten kollidieren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706accdcbf425184d86e61d12f2a4eab802ab7ff3d3ce0d62d9ebda6cec642c4. 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/DEKF22401937.
Monkey D. Ruffy (feat. Azu, Der Yavuz, diyarue & Adem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f52585bc45ae9dc1f29e0776e049bf84d7487ec19832259d8d29cde195cb0b0. 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/DEKF22401821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f9db3c5f8782bfe96f2180638a1338d090c30553700d21ebbe2d9fe66e925c. 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/DEKF22401616.
RLR2 - Runde 3 - Tag 7: Jenseits aller Grenzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3eade6fb1cb6b66597a349e4e74cf1a4d5d2e3518357f133aa9933c97ec235. 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/DEKF22500134.
RLR2 - Runde 3 - Tag 6: Ein vertrautes Echo - PT. I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a9d9fdad76c0933d47dd2fc57252327a072bc1f12794ebfa06b50bac508795. 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/DEKF22500027.