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 0xa810eabe5365fced62fdd1cf81da5d75ddd32ce74525aaa987446fb50b8096ec. 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/6318458d-9220-4d12-af78-07c798d4d953.json and https://artists.proofprofile.net/proofs/artist/6318458d-9220-4d12-af78-07c798d4d953.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bachelor Party (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 0x3de5fcc6d9ec3a85aca68238e36b5ef4af47f3c1852294b8dab06ffd8556f71a. 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/INS321204311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee5d4eb83e5b5930c5c42501ffe62d8025333a74199ccddcdc030dea1019427. 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/INS321204312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3c4e495bf35434fd92d8fdd55ffeaadec2a5933d38029927fb3f70f8169102. 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/INS321204313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec42f47fad0b7f9f53020fba98cf2caade2741d45008d8c8956bb595ab061bc7. 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/INS321204314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b62eed524b6a9fb2eec74cfa18a7af6790d4e011015212686bda225140eab3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS321204315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e7371ec1629aec4eae40fc04bd48efd560e7e2e11c5591a9d26927d8790efa. 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/INM811457882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5ac2f8ee8a0e4bdbb252d82f69eb2423742bb0cd116b419ab2398c5e727a9f. 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/INM811457883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25af96908a7221ddc606ceb5b2e136556729881ed58ee225b3765737de3d555. 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/INM811457884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2177c83f80ed3a6e28eae2769eeb2fed12ef918ca55709c1b329e5402a3c3298. 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/INM811457885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf09bff73045d614dc90d60965a436dd0c151a2ccd5e6a1250bbae8cc2a338e7. 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/QZGWW1948417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c54d3bb77cebb62e59b240ff25fc6d3e7fc7b5da16ef913e0ebd5a7bbb9d46. 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/QZGWW1948418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e77da1ec95f9d2fdf2ad1acaa37d1e907be4df6164573e55ab986a0fdedf65. 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/QZGWW1948419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f1e30a9b336fd712a9d89af5e91e21793f601fd58512038d3cac5d740c651b. 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/QZGWW1948420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1984994362259f55c297bed272e5192b6887030c51c28fc29480aeccb50a1d22. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZGWW1948421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9264771d78be2c554dc80641c82a8f3ce01a14290e75e8bb35b264a10d8c5154. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/INA982000637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a99bdee75519ff45077f4cbf9f5a19fade69f87745ceb2808df3bf23bcf349. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/INA982000638.
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 0xa163dea37b27c6b9ff5a97ecd9277a0a70efed6713828f6d4306d1dceff4e0e0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INA982000633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc636e6a2c6220dccee95c248dd24f7d566f84b245542d67a544afbcb6055a9d5. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/INA982000634.
Celebration (Original Motion Picure Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2541233b5c10c26ac0575ba71483f3f7dcbc8f0e809bffacc836db7cdf3226ca. 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/QM4TX2096298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50be527e7c567e8682b1bd3e80f23644c466eab5681bb3e3cbbd6a3038afd9d7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TX2096283.
Happy Christmas (Original Motion Picture Soundtrack)
Thureeyam (Original Motion Picture Soundtrack)