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 0x2d394704d8b0b932df59e65f8042749136d58522909d3f346014b312233b7934. 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/3d10a037-b100-4275-8e8e-af521604011a.json and https://artists.proofprofile.net/proofs/artist/3d10a037-b100-4275-8e8e-af521604011a.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 0x3d8ca2c070862186f41b56d2f9319b6ceb0643046425ea2c7e5dc4498454786d. 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/DEKF22401199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e2352f02d73028e38b08f05cdb3e4584f2068134f1a7b3f95b4970a19477c2. 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/DEKF22401200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd793c425ebd5ea5ac4690799acb453ee5f9dac132a61d3bef6f3ed913487d2dc. 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/DEKF22401216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aa9cb279cc960e2ab45a72bb1a7848f3d874033b660b2cddf8e7b38c3e0ec7. 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/DEKF22401198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9004a53da63e4ddafa3458482d544466253cb76a797ecd208dbba9417d9d63bc. 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/DEKF22401206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115bd60880651fb4174e418b7b7fff1e3eb0a31bad35b2c162ec9a5b3fa71087. 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/DEKF22401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4394ca0b4dffcaaba7d17559e51a1dd83b1ee1cc3aef0f08c5a7378b93959a8. 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/DEKF22401197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd3ca72f27317eb693cb3e7092fb4ee0af970d5088259298ce26f40269875a7. 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/DEKF22401194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb96f3cfaf5591c11562b6fbbef86a26fafc4569f911a270de698de4f369e5c9. 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/DEKF22401202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c69166c17e8be9be68ad5aa3598527701e34e2843bf486d9393067fdf1ca22. 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/DEKF22401214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe152a4e2aa9f2bb9e7c25bdf8d4c16890a0f304c9212e6537ee17b0223074151. 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/DEKF22401193.
BONA (feat. ilo 7araga, JUU, Avie, Moel030 & Amo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f32d9b6ebce4b7745a3a9580ceda1d0c86b12bf06d77d0571accec251396567. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22301043.
Von der Straße (feat. Suad.077, Jiyo & Nuhat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab91b6f414fa237e446bdd6347a0422c5e3660ed2d16d9ff442248d31f1a24c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEKF22301084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f32d9b6ebce4b7745a3a9580ceda1d0c86b12bf06d77d0571accec251396567. 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/DEKF22301043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbedc6443462941e1311937981d5119b6d347da29aa1432d4994f79e50c741c3. 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/DEKF22301240.
RLR FREESTYLE (feat. JUU, diyarue, serko, LeoLaBandit, Benoua & Adem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2af9f48f86cb1cd9c9fade456d75b9b5d6d6a1fc25d507489dd20dfc3da0e54. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22401530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1f27bd0b5ab3f1e08021b7e5da6f3c61c6f2f01f72dea9feae3c9cd0c9869a. 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/DEKF22401133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64e91c1825a8ff32384ac627af7d09bad7d4052f498a02f78dd52a9b65874b8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22400318.
Nein Mann (feat. Hamdi52, JUU & Suad.077)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51253ca5fe502069a816fd87d99a248bea551fc5c6408dd4b780190e08ec1b0d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEKF22400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e9b9df18bb970b25c4e712f9ed1cbb9be9f1c668b8b85e430fd0a0ec576fff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEKF22300753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdae2c66bf50c1b9cbcf9998a66da8e885c1af04ca17ef8fe3828bb1234f408. 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/DEKF22401120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a0fa7ccc0e5e86d4987af346972407ad20178f94b88da7078eb7486f495958. 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/DEKF22401122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c47d33443f53c3b43c193a1fdec6088270183b57a8cb730869dfc382d876cd. 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/DEKF22401124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89794c17b3e4e4da22edb840f74c418e3ef3fcc00e9ba946a02c871c649407ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEKF22401125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b298f28bb4f60a2bde769bb0ffb4121a0a5c02487b26951ee11833ab9cd5c57. 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/DEKF22401130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099af22ed1fcfdc2fd66366aed8d652f9ec9852e4f691483e0892b340090779e. 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/DEKF22401132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66ae2df853c3f009ad0907e3831bfbd36c5892341bad4235eae8a7cc959104d. 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/DEKF22401134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4406660eff06a213d43a72469929280dc59c14793a82568dd972311a2c083102. 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/DEKF22401136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a4d4aaac3f3dc6276de7305b7eb615b36024f4d7455b29b92f0d61947f2fb7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22401139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b9f02389249432dbff63bc3c014e446935009556e83898a579ae2cba2a800b. 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/DEKF22401144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4586e27e28f9d79db3a7b776d9927588e5d6e0db523f0f50b9799025eee052. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEKF22401126.