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 0xb87534e2cf54c59251e5a3e96e4c7edba781c73ae700e7cf9ddc80cc243c345d. 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/52ee3990-fae7-4483-8890-f966b3c99cb1.json and https://artists.proofprofile.net/proofs/artist/52ee3990-fae7-4483-8890-f966b3c99cb1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vaiana (Originele Nederlandstalige Soundtrack/Deluxe Edition)
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 0xb79656780c754819fc8be6f0c7c153d711f5c53c5d1d3ecc7b1b780e59c50dd8. 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/USWD11678002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bdb12443609a9ef12d537b9e03a3b05a4c6356716f8ad57775d29889401c5d. 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/USWD11678007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583578101e1411092c31ede6548470fbd57e6dc14bac8cea01d8343a14dc9aeb. 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/USWD11678008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e825ae2ac3e1cf917b36c20c4db150d946ceecfb6d32106b96fb897c292175. 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/NZSO01100005.
Vaiana (Originalt Dansk Soundtrack/Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd4cd75f7083dc6554f634064ea5f9d79004a917dcb5c80eba32386c472e51. 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/USWD11678390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e825ae2ac3e1cf917b36c20c4db150d946ceecfb6d32106b96fb897c292175. 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/NZSO01100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d3ea5058d0b581bc9148c137b6c7039827467ef6f59675077f717f43bdf140. 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/USWD11678395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fc49eebad99270289bbf88f516836e59eb23c9dc8401ecd3bb352ea50af693. 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/USWD11678396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079d9e1e8ca7c3713096583a130ed9f16adf43774b7b9d2de00a709a6cbbb14a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USWD11677904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0246a2a037852cf484fd1d2fb405f71c34f8688ae9b08ad0297a245f76ae6cf6. 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/USWD11677908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c2d8e831c88335fff310289f1a8347843dee7f28aa67c30105b2a20d1df0d1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USWD11677910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a42fba53e3549b21e6a159861814b0953b42d9c43ce9e981ab4ebc6027c9f8f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USWD11677912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59a0d0db7fd5be9e4fc7859faa06d25da4d5c0b32ef14bfba557b7e01b08740. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USWD11677915.
Vaiana (English Version/Original Motion Picture Soundtrack/Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b43de477f74d4693b41a467d7320434895fecda50a0e4c2ba0f3949eac228f. 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/USWD11677859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e825ae2ac3e1cf917b36c20c4db150d946ceecfb6d32106b96fb897c292175. 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/NZSO01100005.