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 0xcd641f39d1a273e445f5582505f5c6b02f2b964a913712382879defd2d05ce67. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6db930d-6707-40c1-a18e-2e7cdec12c5b.json and https://artists.proofprofile.net/proofs/artist/b6db930d-6707-40c1-a18e-2e7cdec12c5b.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 0xe2001b2a645eba864adfeaa22063df5fa969b5b4ba63da84ac41f1827920611c. 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/FRX202132442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3974914695984d0234a9fed649fe7eee36a59003c03473f9c6d407771470fdc. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FRX202132443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a3a46e5b1a0b5d9e629d35b80e2467f9ccee293bc95d4ff5a262db9937f594. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX202132445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dae296b125cc21d5877072713a02b7662d875b792ebcd23ad7d4532b284237. 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/FRX202132452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ad67f53e630f9895bf2e3c3cab45e989e4acef99e4e74eff32883c3e2bad29. 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/FRX202132454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846ab9b8f431ee925cab97d610d05d3192328a6e6f733bf7b629053040696f61. 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/FRX202132455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2333ef0be12f35a09374c31f44df91d0b0e67f37c3648783bdf238e3a2a6a4f1. 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/FRX202132458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e5c8fc51ae967ecd02aac94e92191e99298d665cb0e9fac36d734f0daf79b9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX201813098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45aa680214300956546f10a783573c22631163f9be7257a5ee7d683897973a2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX201813103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af4eca07bfccc77e9d1f26c4edc3b9824043efe6cffea5ae6ec524a3228e22b. 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/FR10S1796501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4593a0e8151ca706525a291e42291ec62451a47f2ba445915e8d033f7340ee1e. 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/FR59R2345973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02c4e7bccd97434c620f1ee4e4ce1a45189de5a908d92b337ebb6771956648a. 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/DGA082227900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1234a99e7c1127398d0a1385c3639093e0c4529b86173e0cad3e88af18ea1e7. 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/FR59R2271213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc508ef65f0d4deac62209b915001453c58d0cbe99cf82f339512976b2d354a0. 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/FR96X1944666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca0d2f7d27b9847eeb06566e28fe3f50322e676855aebfa03cc35f05abdb5b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR26V2084665.
Neo Composers Piano& (Composers from Educational Music Academy)
Neo Composer Piano&, Vol. 2 (Composers from Educational Music Academy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc491e1105ef8a9e0b9d1b4d5d6ac1245543e4b3766ace54fb7f2b48f331a7d10. 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/FR10S1989925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1aae3527d14a903c14ee0799cb95ae591943e8b3f8ab8acb9ce06b818dff4f. 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/DGA0T2425681.