thumb|"Roy" Edward III, King of England. Bruges Garter Book. A viceroy () is an official who reigns over a polity in the name of and as the representative of the monarch of the territory. The term de
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 0x672f356b2d12870acbaca670c1c2b53add4ed80093b807e303ac289b3bd7eb74. 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/800a11b0-f8f9-4c32-a1e4-d44a7a766e3c.json and https://artists.proofprofile.net/proofs/artist/800a11b0-f8f9-4c32-a1e4-d44a7a766e3c.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 0x04b4de1c27653a2ebb747acb72cc634a4b213b0998c96b9fb0e87117c6f7e8b7. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/AUOTA1200012.
Back at the Start (Niteppl Remix) [feat. K. Flay]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc8f7a8ec63920b8823d2cd451608ce56f4851f6c45286ac9f6e884f868888f. 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/TCACG1519133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9071f13af68a754a8b89ea2652b0ae82817cec68a085b4c02cbbf5925b581104. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBKQU1675035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3d7a38fa132c919e0816d80e617441ae35caa1040dcdc0e537d6bd614f26ed. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:22:35Z), 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/AUDCB1600973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88f06fe6e560db5fdde7914289aad56cb207aa540344f6e769aa678d7060dd9. 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/USDM31792301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99581a24164c7812eef2977f6a29be5d0b97aa41c04cb37ef5e583fe61ac6784. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GBKPL1944079.
So Electric: When It Was Now (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7009dcd176c37bf935f5dde8052966803c357d300801fb7898de962b98d1d643. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWB11304249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b24b0d2c20a133d1469bed2e5b6f4db46273984fc17b81bbb49cec2b4799422. 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/USUM71312785.
I Love You Always Forever - Viceroy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573ce322edddf092a48ebea9ec0cb8ea58b96a2e1d523b1ef6af9748e6481120. 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/USRC11601307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6aa1ea5e6ce1b741d82e669fcf3c616e0e0db05b81605869fe478fa6c196bb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US5ZL0900081.
I Like (the idea of) You - Viceroy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271b6ad8a63323d021a58fc4f2a4f8809d3890ad4c426c38016285a0af2b070d. 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/US3DF1973813.