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 0xd1f5b9e7fe21a6455e8d7c53516979cd79f5a5f4e1c217fb5da2947cd04fad21. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bea55a06-fdba-40a8-9570-cf69dd2d5392.json and https://artists.proofprofile.net/proofs/artist/bea55a06-fdba-40a8-9570-cf69dd2d5392.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 0xcd01c2489e04a0f8cf7b874da4336b408ce53eae1e440de0a2f7de27abbf53d8. 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/DEZ651709760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5848e5d1a9f65ea6d42162949fb3e5c86464f0b874f55efd4f061d999684ed5d. 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/DEZ651709761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5141481e3df23c54d2136860840399deca30f01fb57759dc18073916bb52c54d. 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/DEZ651709762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b85ac9003fb23e1d507f053b7e27bd91862bb829f9326946151af9420a372b. 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/DEZ651709763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37a105b477916de6776dbbad9a9312ad80847946f3b1b879bd388d31c305f97. 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/DEZ651709764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec3df0609295c9f078d972dfc1a1fa6eb950038dd4d2b971172da09d48a6623. 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/DEG932003841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936286dbfb349250d73f11cf7216ea3530ee4607fe77c232c51c96672f51de7f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TW1893033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7785b32322558e00d0f249dabbfb9301a8e1380d72842c2bd20cc192b6d58b9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:23:35Z), 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/DEG932102193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6b34134e18f00beee0d7e196223c5da7b4fe3a2cfda4b7663099ac769ae08e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEG932102189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d0124bbbffbbdd0fb56f5758966e372e41c71753e8ce675c710b59914a5191. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEG932102190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92553812040cd17e772cb9fd7121531c23ed74e92c471caa04b46af7e93c044b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEG932102188.
10 Years of Rhythm Section International
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf539e34d72f9e9bb795a80bf8a4e6745087a9d6685a0acd417811e3f6c20f2. 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/DEG932102191.