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 0xecd5d8a4fa8e7a14b4f8993b2d5faf88da2d3ae9060ab88725947861b9e4d59c. 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/65819d45-bd00-49af-98ac-c15dff28ae7a.json and https://artists.proofprofile.net/proofs/artist/65819d45-bd00-49af-98ac-c15dff28ae7a.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.
Jump Jump (feat. JUU, Ouzzi & LeoLaBandit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde21940b3a7a04fa5e1d1439a0cc223fc825721b705490941d64b9eec4088a62. 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/DEKF22400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda764a12651373404b8b79529ec4022719d1497280ac038906c6ddf5ce19fa26. 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/DEKF22401137.
Macarena (feat. JUU, Cave 110 & LeoLaBandit)
RLR2 - Runde 3 - Tag 5: Wenn Welten kollidieren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bee8b5fb78160ae047f4bee55aa370596865503f09198dbb140481bcce7bbd. 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/DEKF22401936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d08a6be3898de026a10a69917361b28efe5dbc2ab3b0041591e69dbfe190ba8. 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/DEKF22500011.
Fahrbahn (feat. MEL, LeoLaBandit, Benoua & Noor Reaga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb840713e47c0f6969ea00ef9b4aa5f9f71e8c1fdae5cf38d997a8f7443c4efb2. 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/DEKF22401820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5b7aede1fc41b83ef916100043045e97b00ce778c7ae6f04eacf838902705c. 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/DEKF22401800.
Block zum Block (feat. JUU, LeoLaBandit & Benoua)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe249b3b9aa2410f5bacbebab386d63aafc03b750ea814f78f6942d9b8d45b95a. 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/DEKF22401617.
Miami Vice (feat. LeoLaBandit, ALECO, Mocro & B4YAN)
RLR2 - Runde 3 - Tag 3: Im Schatten der Karte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95a93fa4b8b1016830b063eb73d9ba5415bd89d7cf2d73e506b73c15c60cd1a. 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/DEKF22401828.
RLR2 - Runde 3 - Tag 7: Jenseits aller Grenzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4264facb794984d8b70a63222066494e01ca736888be190ac34a50833fe788e. 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/DEKF22500137.