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 0xb1ef4f113db6434f9d6821feb2fa729cdecec678b10f45710c34b3b001560ed5. 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/0079c615-23bf-4b86-aadf-45247461f9c5.json and https://artists.proofprofile.net/proofs/artist/0079c615-23bf-4b86-aadf-45247461f9c5.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 0xdc26b9b58a4df6a36507f3f8a901db49fc68bc11c6c8ebf5059080dcc20c3cee. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:52:49Z), 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/KRA351304046.
My Holo Love (Music from the Netflix Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7647829abd20ce9be61ef50f01ec27453a7ffc885da3eba28e439fe647bd7f3a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ8BZ2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66d2f0f633a1266a04547712161dcd4bf262bcf76448ce2e6ad1e4a1620dd4b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ8BZ2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6790b7918d73df66462459146a2edb19d33e10a184439843534be356c007307. 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/QZ8BZ2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cea6d4da90d2814005739f31c1ca9894a695245913e343c5a2f1be7cf389c44. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:41:44Z), 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/QZ8BZ2000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e799269a9f34144a5d0e2bea1da86dabcf126ec6ebe3f69d9bc8626a2bdefd. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZ8BZ2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b69cef18b481bc0e3e55932d7ae0acea11253652992feecff7b6d132609dc4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ8BZ2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384ea18e88b78b9d4dcf4e5f3e032929ac4bb43b9440353249259f856c3bc2de. 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/QZ8BZ2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934ef9b969a86ab96cd570e4fb062113efc01140664588647765974571e3a089. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ8BZ2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57132c9608b55aa66de7316cda5760af1c15fd7c7869ec71f9fc8edfd20df14. 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/QZ8BZ2000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3ccaf0cb1d30e0a52af133a6736ed1d8fa6617aece66abf4ec1a6b659fa062. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZ8BZ2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f207c9b1e397316ca23089847e05424256ce86a63a8a0d75e77c437fa1743b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:09:34Z), 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/QZ8BZ2000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1a13607234bb2fd62a9ba5db877a5c2f075053e1ac4951e38bc2f8c722d768. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZ8BZ2000031.
쇼핑왕 루이 Shopping King Louie (Music from the Korean Tv Drama)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25de80c2582d80144f4e631eba97831c8419a279b525543d152018ec3a523492. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRA0R1600578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a1b6df97f5881072673a3593279cc76adb42aa9140bb2bf92a516fbb44d835. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA0R1600581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfcd584097f54b1065a29e89e8342146fb152639839ec5f49a68bd2924bb07c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/KRA0R1600589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc347fd6014aefb80da553a1bde8a2cd5a5bdf28171d207c394f30410b482dad. 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/KRA0R1600593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20942088c3107df47ba90da8e05d742675a3c9db867012151f9baa8f163af758. 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/KRA0R1600594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40a4165efbc75f5cc6d87ef771f5ea832989ae4c6adbf8f3af30bfb2bea54c2. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/KRA0R1600579.
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 0x24799e94d4ef5f4995760676cb366c1eeaefcbd61dcab27f40478e1289ee8e16. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/KRA0R1600587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd669bbdc7fe0bdfdc8ae5c167c9e2ca9bdf9a25f67384e16d047f46ce0aa011. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/KRA0R1600588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3611127f4d41c319ee3d8aef7bc23ea4c23dd2faaa456900def3a3f2a6195881. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/KRA0R1600590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7ddbaaeed8262707ffa50ebcf7b4a949bb08137e1c248678e757bd692e841c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KRA0R1600582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43c46e9dd3c2459feb0f9075404698caf6aa4910d236c23f3f9d221078caedf. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRA0R1600591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e8c073aab66e5dfd18c63e64cd75280fc1de76fe0d6cd9c5d6225869750be6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KRA0R1600583.