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 0x513569073e6e0a1f5b8eeabe8c5384b35af8b759d95535565336137f97a34494. 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/e12256c1-8402-4957-a078-4128c4973236.json and https://artists.proofprofile.net/proofs/artist/e12256c1-8402-4957-a078-4128c4973236.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beauty Water (Original Motion Picture Soundtrack)
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 0x27685e7dc22360b30bf354b6594a9feb820f486b03df81db205250d1dce36ff0. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:54:46Z), 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/KRMIM2023474.
No Way Out: The Roulette OST (Soundtrack)
Tale of the Nine Tailed 1938 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6afb4e1b09a3f97865d4a9d1f2536660360909a0ff8f36a95694bda12ed093d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRA492300488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae25325b90ff38b1023267ac88bea90f8ecd68eed0cf3bc85986d15a4c2f3e0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRA492300489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccf8c084d6f9dd928f1e4165588d0f9ab4522e78dfe8b6474e39d626f6eeba6. 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/KRA492300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee747d4f65b93bd14dbbe878adf9b37625595249e71fbdd3fe40f07b1c221af. 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/KRA492300495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a23c43a99642d00d83bb92dd4b932fe7cbcd79e031badab52b60587d90cbf6d. 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/KRA492300497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a9288057232434f095e20299cd8aaac7d320d2aba5e433da1404cfaee93b7a. 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/KRA492300504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b6c948cac25b05391fcff8de56d82198a96b38a7700cc019b1a89c8c2c2167. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/KRA492300491.
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 0xa285d12f0569ee4888bcfd83f291dff5925ba7ee92bbcdbca458f8ba56ad23f9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/KRA492300492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2953b9cee2fa72f0723c66e7df8dac537efef044f7ee8e6435ac1b80d43dd7ac. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRA492300493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf899ebd1874f58edb6607e088a0b7eb657caf43243b8bee58dcda9df7e39a09. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRA492300494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9070be2d30187707e210759dc9c8c6ae6d035b4801358327b39d3f3d1c07f4. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/KRA492300496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a70ed1c9aa98617d4234eef52ca87f396e20f92a6494cafad7a72c1c01775d. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/KRA492300498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcd5146ffa4332568d739e60de94dc1efb4f71ade8c6e1eb77a70ef8bdc658d. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/KRA492300499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cd6fc29696c3aa5996d4e0455d07743ed57f04cd4a3ed2c473898017d66735. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/KRA492300500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8283e9cf650092eb33e7dc2d43f7922f588417ed3af0df8a066ee1c6e5cbb7. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/KRA492300501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9f91cd6a247ea0075de1de5115bb1bc932212d18890b3cf579f54e78aea196. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/KRA492300502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb77977f4610fdaf74b76ab44eae030d0ccb49dc47fedb0fdfb3ba4570ec62af. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/KRA492300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214dae21dc11b3165053db8cf792e71812c0248e1d5a494220c718703af7cf20. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/KRA492300506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e71325addf6bb1150a322bf800bbd028a5898f1d6f48c4eafc040422e216c1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/KRA492300508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3cf40a23a217c059226e6ef909f6a33ddb61a041aa1d9733da7f03086ea40d. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/KRA492300509.