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 0x17b6ca0caabd9e0011f5d57f2a57909a312bedd451ce667ec6446da503a3041b. Chain 2 (Bitcoin): anchored in block 953955 (2026-06-16T14:29:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26097858-7674-4ca6-b547-c046bbd35f2d.json and https://artists.proofprofile.net/proofs/artist/26097858-7674-4ca6-b547-c046bbd35f2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feeling Good - Instrumental with Background Vocals
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 0x55900dde4a0ec15258d1fb2ef8f0021cafa4654e3d2c40081b058d00b7a394e7. 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/HKG732124747.
Interstellar - Instrumental with Background Vocals
It' s Time to Say Goodbye - Instrumental with Background Vocals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc94b29e59da6cb2977763eaa749e5d4ac8ab27b2dd8622e71a43d76b10c3e1. 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/HKG732124751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251b609eb458eae8f9a909060845923a24dda26bb3dabbd769c4fac536c33c62. 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/HKG732124757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6f189191e36790805a5dda0c8e1a15f2b7084c4fe4182d132a0b58dfee2522. 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/HKG732124763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3194ee454501689afb54210bb4e7fadbd8c9c4625e3020582b1496ceb2d53ff8. 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/HKG732124673.
Lay Me Down - Instrumental with Background Vocals
Stay - Instrumental with Background Vocals
看起来不错其实也还好 - Live和声伴奏版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf46e3b85dd2ecb8141caa35f08fd6fc05c58c456d56db86d88f789c785a73e6. 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/HKG732124687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b44d10f52daa96c4e2c7911411db94ba5c77aa2c691412ec28891e6c0f2b68. 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/HKG732124693.
CD盒 - Instrumental with Background Vocals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8383b248d925ec8144c084c1ecf119cc612441b77bd246970a83dd814095ec. 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/HKG732124721.
Finally - Instrumental with Background Vocals
You Are the Reason - Instrumental with Background Vocals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c837cce65b8551d6169b563ff8a296201f9ff7990023ecb6932cc27807b6747. 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/HKG732124725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d68f77fd3686383e18c7e4ec7dd9718df1f91f33e9a2a846e0a17e965a2c2f. 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/HKG732124727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd339dae0381e0e7635dfe022f7c8ae78566da6a47e32fb0b3451357b8a7ee864. 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/HKG732124731.
Little Love Song + Band Game - Live和声伴奏版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab6c3798ffac76342f91671f6c68e0714aab6bd5e6f36a4b56e5c8c2befff6a. 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/HKG732124739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b8c2945458ade905d70da324ea311cc153f98da03f1b38eb8af7478ee0f3e7. 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/HKE672300828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96c1fa17c086b9a6c060d825b77270eb4b100a4d9d9247bbf22ffcb120c9783. 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/HKE672300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b9967f1a5150d41cf3556e599ffb9f7ab8c39e4e05a34c35bcbb22651f2558. 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/HKE672200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6752a50918ef7458340bbac33f7909f9c4bdcf3c2a5ee690b45d67dc11bdd0b9. 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/HKE672200084.
Baby Don't Cry - Instrumental with Background Vocals
Royals - Instrumental with Background Vocals
Somewhere Over the Rainbow - Instrumental with Background Vocals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aee8e492e97151c27a9d1fd4c74be2dbfb93cf4beb099262ec3cff0c2346f9f. 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/HKG732124635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e0224cc962cc2fafb908e574ab9dade90490b7e0c3594556cec63c854a2f6a. 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/HKG732124637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3157c89cf39a269a26766c52d4815f5d010dc0bcb8b228f84e5a296ababe277. 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/HKG732124639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00acf0be4191ab2c197b65017abcc19a03af61b498687359d80ce8cfcca69a14. 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/HKG732124641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d8fef47f7dcd4a7b57ff6640eb9d37b299655508a534174928d018eae22fe2. 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/HKG732124643.