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 0x9640cc544a4cea5e052cb84692561b93f5d4402baaa432df35ec3eb8ef1b10c0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9ccd4f2-507d-44e4-bbff-57d1b66a433c.json and https://artists.proofprofile.net/proofs/artist/c9ccd4f2-507d-44e4-bbff-57d1b66a433c.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 0xb721ba580686464838b5c23343729d3b377c7567f7c1689a4ffaf3a9dbaa63f4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US43C1620302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db75bab5a55075ca065eea5129dac970bb9b0378e0f27ea225e26a75e92ef6f. 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/US43C1614203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abd81bf96383d4d439e053597dcd6e254eb59edaa682883ff8e6c067f30deda. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US43C1614202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf671cacdccf75045fce635d7f03e323ca4f3c9288841a904514cbf644d3fe1. 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/US43C1614195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb431482f8b460ffef9a878ce42316eb5f9c974161e73f047d90802d1cb00e482. 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/US43C1614199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d9dc7c2a0bfeb98e95770ffa835d4021e68bb03e2812d168b679105ba64dec. 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/US43C1614196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d026af9962939afd629cb280f66d37ce2909d43e31837b8403934cc18fc5d7. 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/US43C1614204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad68d48400ba42d541aee64f037fa1c411675fbbec143dcefe3a04f82dc0bc5d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US43C1614201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cd90ecd86e7054ae006733a211e11cb15cd85049a7873727d36c56dae11175. 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/US43C1614197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6879d2b68e3fc54a371209d1060814859fee200be69f4878908af9723a122c63. 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/US43C1614198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5908bd5e75c3d12fc53880a8c38bb73967de0da26101bc409b37d1d100b62907. 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/US43C1614200.
Lightbringer - The Mageseeker: A League of Legends Story
Lightbringer (The Mageseeker: A League of Legends Story)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba31099060b91ee55e5b7e41a8d5f58690a58634be38c6d6f6c27761ba70eb1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZH6S1900665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e008f5a35b1b27c33f471d2a4c7a0c4bbe08bdcdcf2b938a74dd35e2682866. 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/US43C1626120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39baffa3e99be46b8534e9bc6544774eaf48f6304540ef851780a7341a2f1b1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US43C1624827.
Canaid Lia Fáil (feat. Julie Fowlis) [2WEI & Ali Christenhusz Remix]
Canaid Lia Fáil (feat. Julie Fowlis) (2WEI & Ali Christenhusz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6ee0bbdafa735f952b3d03c624eac4ec6d6b6d1a39c3a84c1949ca890aef88. 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/USLS52194701.