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 0x2ff5fe5edf949fd1371dc0e0b91405027bcab418a5eb475b1864059b3416e998. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94d9dd30-761c-43be-b7c2-0ce6d2da078a.json and https://artists.proofprofile.net/proofs/artist/94d9dd30-761c-43be-b7c2-0ce6d2da078a.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 0x03f3d2aefe7afbb82b3683c27621d26cf4fb204d9f4ae09832bc89cbd56fd813. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/SKAW92000102.
Nepovedz ty dievča / Ešte si ja / Ešte vínko nevykyslo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b42897cf2e6e2a217732c174eb42ff10f3c419396f9987d36c3c3b9ed3b523e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SKBV12200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57de1491b6b110e19f48405ac66b42c12ca69fff3fb9070fc6b9b0d6280c3d7a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:37Z), 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/SKBV12200205.
Moja mila na mašine šila / Už dozreli / Dunaju Dunaju
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b78e28963f8de556e32a8390f76df26833d1866721a298fc317c82528bb21b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SKBV12200208.
Teče voda kolomutna / Rozpriahajte chlopci koni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bf71d55bd90ff7fbf4d49cffba815048b7b4e864ef7fa8ca8bf7f18842deba. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SKBV12200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd35cbaa2d2fc4c28078ff9123347fb4f1ca4258f679f3385e31240c055cfc. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SKBV12200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c43966551b4d70da76f888459eca9ebab467980cbfeaff5c32997b1f05f1824. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:11:28Z), 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/SKBV12200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdff4d5f886973c57a81cd88ec9e85a6cd322bcac56ff92d03bba2695fcdfbb4. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/SKBV12400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1735317a239fd95abcff0c1ff2ef82331586d82629edf44ff07dc0d79a13ebc6. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/SKBV12400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd1f1462040e122574fcdfbfffeb4b2b6ea5295fd29db830611ab3ef6a6a953. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SKBV12400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9001f5b03e5bbca6f99007bada29f573a855383a384ebfa181b368a4a8dcda. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SKBV12400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee6402ae478dbbf6b6fb7a69175bf52152be13a5746737efdcd64b4e1724f4c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/SKBV12400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd11b121642b49ad8b4877a7124b8be03be23d1958cdbf1568cddd4a85758cf. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/SKBV12400309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e30690ee123b50cec3ad3da504c1bd98317067808cdcd5fdeebeada3369b86. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SKBV12400310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b8d69551885dca928b0fb55130639d53bbe623d36a842d4efefa786c147055. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SKBV12400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06e76f5b0482df00c6c914113d520ababbfab93f4493b73d6d35f641629d501. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/SKBV12400312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efb3d4b162d01b4aeae3bfe714a107b03f99d9360abd10694123fb58f5c1a5f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SKBV12400313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2767a2282cef685e868e53695e1f1c927b12df73bd78b2c290c5d24d9afb53fb. 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/SKBV12400314.