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 0xef707719fb10a1618eefb11d9c569fa693ea98ad2f0ba2181a2a48aadd529dca. 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/10a4c283-44c7-4e23-855a-5674702748a3.json and https://artists.proofprofile.net/proofs/artist/10a4c283-44c7-4e23-855a-5674702748a3.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 0x1adf2a1fddda389a8783892bcf801f2c68f34859c559537264be3de638f3f976. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PTNS19500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50121631008a1ebeaf1ed8d0e6604a50786202978482f9d3c1199e5dddf318dc. 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/PTNS19500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38b91898548104ab47b1840182690082e97f1ccc0752b023daf0400eeae264e. 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/PTNS19700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d82ebb7b8423d8f6024c87fb5294ea656aab62a871a5c6246e59ebe6a70f743. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/PTNS10000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928232c6b22a4c713a51467d2ecb5c3f11b3cc70f71adc7e697322dc7529a692. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PTRL11000005.
I Will Take You Home (feat. Sandra Nasic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b9c7d80dffe682178d4e8bd97c2832e7b7ed9763da59cb830d74a6c164ffa5. 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/PTRL11500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23d7c78ef2f8c9cacccb10f7179972208b2f70820f8e927d64ea3642682d543. 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/PTRL11500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffc2276020534037e968340dcc5daf95a39a3ae37c1e1b8ac2879a9dc32e78e. 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/PTRL11500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f69424ea1f9d2d7342d8219766684ba0039e2baa056b34ebd05163f484ef33. 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/PTRL11400001.
People that Hate People (feat. João Rui)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e67f1b14aea62738db9f753f39f84704a2ae5b0ee0f3acc576c6117e35f3ea. 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/PTRL11500010.