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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec1ef874e1708e278f20a7f6eaf510248fe5239eba77d50890e2ceccd1b62bd. 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/f7ea167b-b500-409a-92dc-c8c78d8c02f5.json and https://artists.proofprofile.net/proofs/artist/f7ea167b-b500-409a-92dc-c8c78d8c02f5.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3184797e9d2c716980be296c290cad4087d9f1c3c261617d7f1ffb840fd24db7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR0220601570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ef8994a93b26e644c47a773bdca4ecb7811ae8a0d083c44b683fbb4414449. 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/FR6V81529667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9c779cf0c4bfb590be29c8a14c4f5659675c602869ad70828d4e2bdbdda65. 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/FR6V81529671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ef8994a93b26e644c47a773bdca4ecb7811ae8a0d083c44b683fbb4414449. 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/FR6V81529667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9c779cf0c4bfb590be29c8a14c4f5659675c602869ad70828d4e2bdbdda65. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V81529671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6558ece095f05cfbef94ffc3f59f1cfe122adea51adc0676074b7574b3a630df. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TR0531102460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b75e5fd6d3c7d22b94998b3044a4eee73eeae5c84b890c63a82572da5c0bb09. 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/TR0531102461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3e25a5da7dbc9ff84094ea8e3b2fdeef1b1c4d5c1f9ac2eefceef251c80570. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TR0531102463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cb0babc8316891704b9e4926d045cb3dae8f84d1d8efa4c6aa9aa1cef0fe5e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TR0531102466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c837fe34bc347d54f33c2309def17e20ea28f44b483b9d7439f5d32663c180. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/TR0531102471.
Devlerin Aşkı Büyük Olur (Aşkın'ın Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c00a804f89bbd369484350bd97c4ab1a1461204ef8ea1519ce5d6cb5a45ee1. 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/FRX762065121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1a25455f5377bc7109e0b998cf11a78b2b11ac9650b9a0452b0d73ee54b856. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:04:01Z), 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/DGA052064895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da4ac5fc076fa4f0651d3af0be56286500bcc0547f3c9250cb9805f8f11e73d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TR0012200231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5954e1551ff2bf1b42b304cffb2d9dde140eb7f9a0e97c8dbc32a0ee4308fed3. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:18:34Z), 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/TR0012200421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed86c36456920d5f0965f8a5a01b8efe2f09676bf3416971765ef9fa01a2866a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0222300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed86c36456920d5f0965f8a5a01b8efe2f09676bf3416971765ef9fa01a2866a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR0222300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7170d11f60689e99ad1cb73684f5e52ca79b1b552c6e40f06cedb90fe2c1fefa. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FRX202441292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd748e58bb2fb46e166c0194c6b70819a8cbd1d7b6d07a4b380cee674dc82a59. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA062478453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3f2704b05f99fb91d66272cad05c05ba92149e3cb57940713820b39a56c07d. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/FRX282549289.