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 0xd7749bbce794b0c9e87599da8845e11a4e60804d57f76a28fa5a694533f0759e. 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/60b7ab81-6454-4afb-be93-1b43261345b2.json and https://artists.proofprofile.net/proofs/artist/60b7ab81-6454-4afb-be93-1b43261345b2.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 0x653c24b11544ee652eb2f31e68308f06edc5a14bfedc430ed58077e17aaa2ffb. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:27:44Z), 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/QZES61877014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50899fa7b6fa7a3170d37d89162b94a77aa68981ac627059445e9bc99c10d025. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES71824284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a56e17e77371dad230a454f49c7ada33186a55167c9f5efc892d8d9f3086849. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZES71824288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfea5e1c9fc6359bd8c2b40f1cd2adfbfb1eee0f25bf66fe473f18eaf9145060. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZES72077712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb027bd23c0ca332a9bf0ee830de8bad865fb1a181dc49343ae3ae694e33f3882. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:58Z), 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/QZES72077713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174410f976414a9ba03c88a9a7a0417b57487e51fc0914d741502d61d7413e3a. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZES72077715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26578dd8e9d023f83f89dc67329174ec496e90185b1df7ff903f5e7b1911e8f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES72077716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61858938ea897c030819771201d3ff6fe242a3ae8c001b2beef39fb18f6336e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZES72077719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe924418f5855e6437844b785004320face610e6c2aeefdae4c9d9a6c7c3e97f8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:19:21Z), 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/QZMEP2080989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd696b37a747ddfc31926534907b161b24a7d29c31097428f357430cf491267. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPLS2003943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c26dba4ad080797c2dd9834f944beb40902124c81dc42ee4fe3c2e533ce6fef. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZDA72185950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d92e5b87f12c5fd12985a89346c70b920ff853a457ed3de9c5a6849db7b4e88. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/LKA0S2100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cc1cd49f5f610a05a0424ec80cc7addedeefa9a1fb284a08d77b1fdf6a976b. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:30:36Z), 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/QZSYP2156397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da7b71572327d52465ddf06049b46db487e49de076ac5a4846dddf5b3b4d621. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES62066167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e799948313e4b43575ff24538be3a8de01c0f28de4c77dfadafbcb32e2a6ca5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:36Z), 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/QZQAY2481677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c6276f8813ce06201f2cbbd2aa4e8aa0bbcd494101c5dd87b50aa9da20ef3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZSYP2444824.
Deviyange Bare (Kataka Live In Concert Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e24c42ba87ae470784688e84828b8adbdec5ae6115194e34a55a337fc71bd69. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZS7J2594168.