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 0x50b0a2aca3d083ad65d527bbf12c6983124f96685cc1c2ba5562a46921406cd9. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1b0dc0d-dcb7-4390-9129-958114709795.json and https://artists.proofprofile.net/proofs/artist/e1b0dc0d-dcb7-4390-9129-958114709795.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 0x5db7b3fd20a058ba1cc1559f71377ab3ec504b7e27f85645760201f4fa94b762. 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/UKMVA2400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621da557db69ef9f6b241313bb044de2808e5dccffa499ff02a93cefe90dbda4. 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/UKMVA2400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba65bdd169e0f58eeb10aeecf6ea0934fd98b0aad45dbeefce9c193054f9ac47. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/UKMVA2400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0367857f252aa434f0dc934bfec4796f3d38145aa9bfd6741cf844e4ab4fb73. 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/UKMVA2000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84ac73456a14c9e65fa94df22916c71165143dbcb919ebbfa268213e1be1fb1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKMVA1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98d00e9e78f943a1f1e0e162d23abe9ad17610aaa52ff90c87386aa2779adb8. 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/UKMVA2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472f4bf3d0dfd7d72fb4ad46c50dbfbb5c4a00d892ae478afbd580eb75eb19e4. 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/UKMVA1900127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f88865f6f3fcea951881adae2e9eb3481f4ea3747d532e96f33d9b79a585a0b. 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/UKMVA1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9274b07a817033ee88d4622b4d9f617bbdd7f0fd1bc4ed12af7fe10afdcb9dd6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKMVA1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c2d0acb9f1ac6972f95fb926bff6d56d0d7753b0a8f0bed447cd652e838d14. 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/UKMVA1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1ec1c02e5f7852df29ef3af8b1c49772038475c03c46ca4b1d4ca7d1ab5905. 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/UKMVA1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443c9daf7ef31bc42e7c5eb0ab4c89cc24b2ea525dba8ba51c0f50d6a914b500. 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/UKMVA1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19e647671399ba11e5b432a261658daa4ba130e87458b118fc7fb55c83dc603. 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/UKMVA1600016.
Seker Oglan - Sari Kiz / Karam - Kol Havasi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84ac73456a14c9e65fa94df22916c71165143dbcb919ebbfa268213e1be1fb1. 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/UKMVA1800001.
Turkish Disco Folk: Volga Nehri / Coban Yildizi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251479c47aaa6dbfe1e64ab9765d35f95d8a1dbbbb986e57bc83b7f43ff31d67. 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/UKMVA1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfaf2963a333c847f3b6f2f1c5fd4436945f8f858183217586423dcf760e9f5. 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/UKMVA1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3970e92a78941cc552810ba6461395f9085f1d3992eb7a4c8627e2e2f82230f8. 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/UKMVA2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c6982221596036803e5d82b69f33aa5f56f29ca1012f604e563bb52027471. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKMVA2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98d00e9e78f943a1f1e0e162d23abe9ad17610aaa52ff90c87386aa2779adb8. 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/UKMVA2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604db1f752898a12395edd6800cbc7c88a67afebca0eb2330dbd6c232a38c5ac. 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/UKMVA2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf04055303f63d497e0e756ec10e09be93b3191622954e2bcea9e24b5ceaa2a. 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/UKMVA2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f04f0e09b9740b752f719151514b89459ce997eb5f6ecc67139c2eab572a596. 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/UKMVA1900410.