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 0xc103106af084a65bcabd097aa6bfeeb1c4c6be1dfe54563373dae1690f796b5f. 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/ffdc05b2-e99b-4743-8fd9-f699c41045f0.json and https://artists.proofprofile.net/proofs/artist/ffdc05b2-e99b-4743-8fd9-f699c41045f0.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 0x13c2956f5e35e54597254063b4d566104be94e2a3a3ccfbcc07bdf31b79276af. 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/KRA302000482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf52d5dca53ced4836a15a67fc3276bffb3039ca372c4e5ebfdae0121f69c82. 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/NLM5S1800408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44904f62a389f55d0dd49d22f0307da52d9a9df5ee6c59acef889adfde5dcb48. 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/NLM5S2201582.
Protocol presents Miami 2016 mixed by Florian Picasso & Blinders
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3796359b5caac0e90943091fb68388e3eb7f3ce4f9b9b6d8746b1ee6d22b8a43. 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/NLM5S2402170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f07e6179f4ef0539a39f2a68339325fa25b3c431ba2c18a2c23d4c503d4196c. 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/NLM5S2301956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa3c8ad6ff71fb796ca21f206d54a2b5cffde833b208b97ae8edccba9158d88. 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/NLM5S2201689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ff5ac32501bf3734275caff72112a1d8baa8c4ffa916c59d9e7384a7de53d7. 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/NLM5S2101264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca63d38ea4a3eab0ecd52858316088463d54a3570edb6de2ae34a9f65b86e8f9. 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/NLM5S2000888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734013977c0315ebc730f70ebd88c6be298c3b486c3086e743b07eb403006ec2. 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/NLM5S2000835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b5fe9954522f40ae35e404bf9f5041456c3cb341f6a08f12e79c62d0720b24. 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/NLM5S1900499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745731f8b8eb6fd5fb0d83bfd120906be3015d9c03d16a8784ee91f66905ac11. 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/NLM5S1800361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdacf8b9c0b9c9fd21df58df5cb62f06d80a90dc2bf4d2fd52402e78c65a2826. 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/NLM5S1800342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe16b32754fd6617743881bdb6f70d27f184200ddbab10a3c432c57fd227668a. 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/NLF711503529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e3ed5c4d9a9de495e8244d514df72f670f74be545abc7d07a7848ee9befb70. 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/NLM5S2402228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11efd108af3d9023c130ac1b2268f7a6dd94427f035ff0820fb842e452c1c097. 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/PLB382400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5071141897c11f03a82338ffb62a03a1a15718f353f6ba54c84262b4d409a7ea. 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/NLM5S2402257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa3c8ad6ff71fb796ca21f206d54a2b5cffde833b208b97ae8edccba9158d88. 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/NLM5S2201689.