1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc908a20ed01e0ed3c73be81f352fef154a191343f0373f09d6d39251f48b7bd4. 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/58f82e66-ea6b-44af-8580-61316dc81ff5.json and https://artists.proofprofile.net/proofs/artist/58f82e66-ea6b-44af-8580-61316dc81ff5.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 → block OTSBitcoinBlock must exist at that height 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 0xdd8958c6730f4a98a808d8c8a34ae7ff928ea3b61ee542343c9b8a44f15d2d04. 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/DEVY82000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf32adfc86d038d67045b31093724415ac89715a28aee79a3f08e05fec7d98f0. 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/DEVY82000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6476810785ea6479f8fa1edc5386b26bda1b76cc99ca84b28739205df6e05620. 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/DEVY82000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afb78d63fd1502f8f7f890e0d5b8b65d168e9bed085c2f03850f242bd63181e. 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/DEVY82000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c00d4dcbc9427e63b677a057ff3c721b0a0e5b677a2be85f36fe49b18f074f6. 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/DEVY82000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e47e29f0d05387f0d95987db8afa34228ea85121dee3e0df32449b25d90c5c0. 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/DEVY82000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d02e671a0fde4d1fb4c8b4ce7c27db61cd71ea79562faa82faa10fe0256c48. 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/DEVY82000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100fc09d56b24cc4295fc3382c2575c4ee6f650b68722ce01bb303abd883d3b5. 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/DEVY82000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44b6f3cf3ea3917e4d4fa668a10da7c29b6e928268cb3dbfdd742f0d33b63b8. 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/DEVY82000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f865024a25120768437ccc6c5f3cbee0270427f4aef2120f62f425d6241d5b. 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/DEVY82000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf1c5ae2e6de5b8f79bf2f22e926382fdb40293a9c165887769a53f0f0b72ab. 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/DEVY82000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00936a2abe0f9ecc20ecaa94c473088720bc09704de94939c1e77e4f5c6a842e. 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/DEVY82000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbaa8c13d210e1808c9e58120ec6f1478783851d0014bfdf32d41701238bcc2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEVY82000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109036018c2b0ece3d735695ec3254a029174ff60031268472bc23bdf00b9e2d. 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/DEVY82000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39887ee4929be8355fd81653f7368c2d1f770a14a24e40a967bd512590e73408. 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/DEVY82000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928a124cd27c1ac4c5ef25c1647f897f775e36cd6b2d2eb096c2a11d65d9dd3d. 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/DEVY82000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4146caef081c511455584a3dcb62e8858a5e9ddf6b72ed9197f4aff43e38eaf. 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/DEVY82000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a2328ef996fcfc53570169dba68ec49b71d563be6fee53ef6121d637eb4e50. 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/DEVY82000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1516d8fa714ccb91c041d8ea3cc5d78c752eb7d770a47e78006130c450bdba. 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/DEVY82000110.