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 0xc477c9adba5eea345224be942e00fc9b7c337d1a20a4a47ed934bf5bb53523c7. 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/2bdeadc8-9c96-4e96-92f2-9660b4418c6d.json and https://artists.proofprofile.net/proofs/artist/2bdeadc8-9c96-4e96-92f2-9660b4418c6d.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 0x08c53f0d0f272bf015770034c9e82ed1afe36b3739838bb5557ef873c3539c47. 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/TRA161900358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7cf0e887e0d627be13607b8534a0019c42b6fcdbacd5ccaae0ddb0ca74616c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:37:34Z), 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/TRA162000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5e130aeb544b114c79958b54e97514327c660047ce10e19bea09d077ec3227. 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/QZDA82139288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd82bb6785a98eac42856bd9a7ab2b8076e78cb3ca6093e5aeaa1b9f32948b9. 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/QZHN42151247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905d8b337c2fd561af9ef5bd8a9844e42748e879d03451b99d9c27e2bc173b46. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZK6M2102841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3b4cb52bd09298da553822a416e8e4a736295e8aa13e14528b4da76519fdc5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM6MZ2398550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1338425ee6bc7fa37eb6996e4576ed281fd70b84968476ce56ad9748580a926. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QM7282358939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a67c29d9b82c090705bebadf0631249483d070b6d967b9e8f913fba2b0f23bd. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMFME2374488.
Bundan Sonra Aşk Yok (Disco Tarantula Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64de43373b87c7b00285853cef40eadf3402f94dd5bdf7e38d2f6d63c35cc03. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6MZ2425963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3b4cb52bd09298da553822a416e8e4a736295e8aa13e14528b4da76519fdc5. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:21:04Z), 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/QM6MZ2398550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9431e9f42ce9885752a8960ef6ba77afc4c2922a3f1c79e73026a7eeb1dc5db3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QMDA72428680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e81613ef36be9a2ae80b2bcb7f263f1c9cfdc6f6727548b6ab2b38d8d0cdd2. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM6N22418159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d8614b1eaf60ab1f5a5fc2cea14140f6a112bf0cfcb7f870a0fec48977f6ea. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMDA72428683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a67c29d9b82c090705bebadf0631249483d070b6d967b9e8f913fba2b0f23bd. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:05:38Z), 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/QMFME2374488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1338425ee6bc7fa37eb6996e4576ed281fd70b84968476ce56ad9748580a926. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM7282358939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ff85c9403d0df8f92b4d06ca8ee1cf4c34189e78831ccfa72f0c28462782ab. 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/QMDA62332767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45a94ca41b1ad2f6d2ed49d3f539c5963da19360b48e78799b0b599acb4748a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFZ31931665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec201ef3ab44e821cd5295dbf844b0f2463c4e6e0fa737786b2ee2728b45b9ff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM22493708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5284aa74ccce62879b04eaad89a5afa7b6f28daac61a72fcadae29f46bae8cd. 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/QMFME2367804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391570d7fe1e62303f78b131144314380a39b34fcbbddd752dab0b7125d78e32. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FRU702200012.
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