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 0x81aa2aa00f7078691644c0dc7fdcb42a8d0e0421e4c047b1a4639b9808a4389d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c3388b1-e65f-4b99-a2d1-4ee4f103feb0.json and https://artists.proofprofile.net/proofs/artist/7c3388b1-e65f-4b99-a2d1-4ee4f103feb0.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 0xedb56e0a0009e1fb9efd03d064a5d1333b3696bba0a031c7b6542531352816e3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX281923839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cecfb26c72ef658024ac5d04e68f4c525148d01486ce36c9748848fdd23a9e8. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/FRX281923834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e78ea4fd76824630a663a7b785cd3176c97622173f6eebfaec8efc2e7afe5b5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRX281923837.
Dance with Azar Habib, Vol. 1 (Instrumental)
Dance with Azar Habib, Vol. 2 (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa003fd9813390cf23af3b5b86e45c9eee664ed7e213578b027c577429a0aafaa. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V82569656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c14a9ef1a004ae27cb0b6a6ca4d1cb263a4240df0474d11bb7a2fc0ce3d281. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR6V82569658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cd94a42264fbd1dc6658568781574c37c48b39ba0226112d37fc33e3b80f2d. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/FR6V82578730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fec33ff73369693dc8a4207638bce7c68ec3b247dae31e99cd5f6d6240f5257. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:42Z), 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/FR6V82513114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436a13a0377cecb2f5993c7d1a428ca5fbdd5277bf51ebaa6009741d2b371f4b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR6V82513115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529b656afc240579dfff909c016d3ccbc974b4e511253d94c393463f64459e7f. 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/FR6V82513121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6333e8869630bbbe77e7ef5846394cad85ffccf9a14f860e46d5768d987c8662. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:59:00Z), 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/FR6V82527220.