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 0x7e18e1e592969daefad804314ad852cfaa2bbbe76403a6939f2f618846138905. 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/8add2159-d833-453a-bd61-eb3a86ce5ace.json and https://artists.proofprofile.net/proofs/artist/8add2159-d833-453a-bd61-eb3a86ce5ace.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Okul Öncesi Oyunlu Müzikler No.1 (Baykuş Çocuk Şarkıları)
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 0x76ae09811ebf8ad70fb1d3d2a9d571e780fa67ff68be82bc189257fb06ef74c8. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:05:28Z), 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/QZDA42106262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3925c832659939ca1f76edfb5a2160c1833e41935b584eb76eae27fb5fdaee4. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:00:55Z), 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/QZDA42106263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b74ce7efa2ac7b16941c2e31304daa6e23538714cbde3c2fcafc9b71ed5acc9. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZDA42106266.
Okul Öncesi Oyunlu Müzikler No.2 (Baykuş Çocuk Şarkıları)
Okul Öncesi Oyunlu Müzikler No.3 (Baykuş Çocuk Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f29a59e3e9044463f399a5972f19b0e84d023e45dd6e22331d33a6d9371aac5. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZMEM2172757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64eca0bb8e81df0d47575ecf7d063a17ab2d95dfa1592a2a973766487f589442. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZMEM2172758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86716a1adac2b891c5b2d49cab9bcd36e32a7c14751b5fa25680fcef438ec8d. 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/QZMEM2172759.
Okul Öncesi Oyunlu Müzikler No.4 (Baykuş Çocuk Şarkıları)
Okul Öncesi Oyunlu Şarkılar No.5 (Baykuş Çocuk Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d8c20aaed86adec556debfc697dde0e4191327a61c80770d8fb52109cfd32b. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN82217991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38835a4948569b9da2d2db2bd2b6f6aa3a6430e2f9b6db8d593d68c70157a973. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZHN82217993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622b7ebf93e926037d1ee6ea80f8259792aaf62b1ad56dc7f0b44c50ca541448. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN92280988.
Okul Öncesi Oyunlu Şarkılar No.6 (Baykuş Çocuk Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ea25987630dabd7ae6deaaf29c0d17641070444db6d517d34741302add3edb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZES82337125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ec5a073b13b5e82ed7765b26c45b1e5bf6d626a8b4cbcd53d2ed181e795f30. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES82337128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbb35ca5f1d2ebc129aa884a24ba7d77c409b40e3ae172c44411085c91c2879. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZDA52567612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe557db8235801ff0d53d562f6474271197f05a8eed0f1564f5208635e456562d. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZDA52567613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55315d5c4223fdcb78260fad02919404d49c3a0e350c552df9bf057fe14db677. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:59Z), 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/QZDA52567614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e98884f715384fdf4adb6a697c9676e4bb1c5084b2fb242de34f04ad29441d0. 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/QZDA52567615.