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 0x68b16a055559f574070c19c2e64946ac4725c40b2007c382c23039f1861ebf42. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27f360be-12a0-4cb1-8691-cfaa67bc23f9.json and https://artists.proofprofile.net/proofs/artist/27f360be-12a0-4cb1-8691-cfaa67bc23f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Werewolves Within (Original Motion Picture Soundtrack)
Hypnosis and Odessa (Original Motion Picture Score)
Love Always (From the Original Motion Picture Soundtracks of Sergey Solovyov's Movies)
Nadvoye (Original Motion Picture Soundtrack)
Barbarian (Original Motion Picture Soundtrack)
Sting (Original Motion Picture Soundtrack)
CONNECTED (Original Motion Picture Soundtrack)
Fear Street Part Three: 1666 (Music from the Netflix Trilogy)
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 0x1f37e7dc9208528a8fc704ad1d184ee75530d734f9e9740500db1780d6d73bea. 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/QZ8BZ2100305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf267fc5cf1053dea14b06236ac24acf3f33250c621fc14ebcc3818b157ea7418. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ8BZ2100306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e565f7e215a4469acba6b5cde3ce0ef89e2fb1013423786b15f2b0992913ed. 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/QZ8BZ2100307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0aa21611aa92bb6e6a2ddd7dbddbff3c4243230fba7fc9b3041c438d6d7292. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZ8BZ2100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2466a6cd7344827cbe029ff6929ac282ed9554acc8b9086495bd3eb289ded7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ8BZ2100315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f86a0cb672ac9e5216123dfe9f232995990979194921f5011b7bfb654451bb0. 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/QZ8BZ2100317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0660e4bf5f6175f46d43e55d046f7007e0c2c17076baeee90034aa863176eecc. 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/QZ8BZ2100318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860e8b420187d9e2460aef27d8f8b10cc926269e36e94abea052834cc1febfcb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZ8BZ2100319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc34b2732f32db6176040809c0e4bfd90d92453851022452156557d31e4aab43. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:54:51Z), 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/QZ8BZ2100304.
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 0xaa00be5dec7c86c047e7b6319a8bf5fe9fdd870d3e683d5ca9aff8888f1390b2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZ8BZ2100308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983d0820bd93ca81f6f1ea6dd052e66069872c0539f760e8a4ded7fa8f7853e5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZ8BZ2100309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe08f3ed0978ccfb587f93b43d5a8c6a32a54b36d6583d23249689111adf622. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZ8BZ2100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0060cb1c0f0e60a084fc6c5f3eba0733358e27504e949e0d616af71aba2805. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZ8BZ2100311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08da9bdb5e6715486811547426cef38a6382c98864bfc5d1cf822aa58574b7b3. 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/QZ8BZ2100312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4a80080183540a4279ca4ef30b964fa05d2793a70287a8f28bdfe9fa0e50b4. 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/QZ8BZ2100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e535f3735513b95d3d4f34a5913ab46d71aa4d8a7111efd8759e94dd3b343e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZ8BZ2100316.