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 0x5abda2e294d85f3d330e86fc6633c9c683418ff726d39643cc065cbc06f1f18b. 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/6573792d-6864-4da9-974f-27304658df90.json and https://artists.proofprofile.net/proofs/artist/6573792d-6864-4da9-974f-27304658df90.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 0xebe0517f9df5043c298923330f2725a75874092ef7fd464e1cc25857a5cf3344. 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/TWCC32209037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64243ab555ced302249a188599279089b6d4eb7142574231687e5152f02eef84. 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/TWCC32108126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece9af09f71650d201687e1c64ac6dd6b14e035ad9920a08deed631ffbc9ac41. 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/TWCC31900725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c70d7fe8c82c2c4a511cec0eccf76fc93119c16fbbffc7c4abc4a0625fccd0d. 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/TWCC32003708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa26c0e51ef34dd0f8ec417c06ddf32ba1701577b070556167ee3583eea84efc. 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/TWCC32005201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5658b3eeadfd91ffe783ac4bb9a809cf0c06fe36f65ea868d3e599a4cc34d01. 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/SGA052400010.
Sip n Ride (Remix) feat. KIRE & 唐仲彣 CHRISFLOW
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197dbd8fe2fc5b0190ab64248ec503b800e484a763a3f84b4d5330c6665b27b7. 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/TWCC32204900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9167d6e76fd68c8bd6d4a38f52281ef4a573f71c4fd66af2748c67472902045b. 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/TWCC32203869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64243ab555ced302249a188599279089b6d4eb7142574231687e5152f02eef84. 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/TWCC32108126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa26c0e51ef34dd0f8ec417c06ddf32ba1701577b070556167ee3583eea84efc. 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/TWCC32005201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d4f70243ad09490a1cb61ff4a53506620d2f1dce28ac91d1fd898882b8a741. 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/TWCC32004944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc64100ca20f1e8b7d5e7ecc234d35512feaa8289583f5790ac90b1a6b0b50cd. 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/TWCC31800377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7fc5acfd1424fbcb507d5d2f53a0baf00fa2f4b9922622109191bc10a59bec. 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/TWCC32007559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5a52277224c9f3dfd4a3bd92b4595e9478f2d2b3a9a05816a6f5da0b8edbac. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/TWCC32001348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c2254d432eb157182c017c4118c49db4ab27bfc8359e6b9915dafc33cc0755. 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/TWCC32001874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f727adb2a37b47ca593a470c5bb0d6d05b2d9fc50e614731ff67c4cbec89dd8. 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/TWCC32007563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c70d7fe8c82c2c4a511cec0eccf76fc93119c16fbbffc7c4abc4a0625fccd0d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TWCC32003708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bbd4da39ab2789c9b6d16c0b40ef8d74f78d58631c82d33640c9e4bc49c38d. 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/TWCC32000605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883245461befccb4b648e3b282c4ce925a8fe89187c0a4f6c3fe60895c782724. 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/TWA532101172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cb67c0030817b0b82cee3e9d9c8cc04403605005ce5cb0c8e3663e5c4c353d. 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/TWA532101173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2968a663cd11ab40e7746cba5797bf08852dd3430e694edac8bbb8dfed00ab60. 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/TWA532101175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7914ddb719ec10a866365b840a9bf74be0c5776c9abbcf77eed43c8d6b8f08fa. 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/TWA532101176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dbb87ff95e9b7c4f08267165765161fa8879f0dc5842ee3165b93be28e42a1. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/TWA532101177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd999664b5fe3d4f9cd5b1b69e68f7e5fd9221ff02c3127a6b7879ab0adbcf1e. 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/TWA532101859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dfacd529ab727b896d5ded48ba9480b9ea1f2cf2173d76455ab1023f95663a. 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/TWA532101860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0728697060095a08377c0d8fce5e1a0f32fa71d5979ad1205a7e8fce06cad440. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/TWA532101861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5bc1546cacadef42546ef8c0b0fc0838d776593115fc85b5f963f2c0ac1e32. 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/TWA532101865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa897b589331accfa7e328cfbc56090c3208c8a2217011ef41220bcb7482966. 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/TWA532101868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c70d7fe8c82c2c4a511cec0eccf76fc93119c16fbbffc7c4abc4a0625fccd0d. 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/TWCC32003708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bad5f45b3c10a527ee5d3a8b60ac8b9ea0f20a7385f98b5c7b0623a7970310. 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/TWCC32417609.