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 0x668bd90cd0df4d26ee086cfee345503967b9cbc2490684ef78df8d90383afa5a. 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/4f58da33-0e64-4faa-9326-68fc049be8a8.json and https://artists.proofprofile.net/proofs/artist/4f58da33-0e64-4faa-9326-68fc049be8a8.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 0xb21e387edddeefb74f6df0aa973422647d3568f2df0b3414f322328b41f0fb08. 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/DEN062004712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324a6003daa6b1d120feaa21fd0cbf0cfcc773f69fb924699b8e01170de6f70f. 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/DEPI82412923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0fae829a488c69021dcaf9a8c02f1598d602a934ce72f4fbb1703e4ffe050d. 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/CAQOI2402833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0778903ca648c01028b48d3c4fcc47cbf25f6197a1e1d89e19856d6e1b263d. 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/DEPI82401685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08624f6fcd29704d77eb15ac23bd76e588d6b9d6b82ef2f0f792a0a9b90ba9cb. 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/FR9W12362396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea12fb04cad53aa4cdaf5159cfb997990e93f8b332b51e690b6ac8c9e38a857. 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/DEPI82314275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f187ef7b83452cc249ab39a39d869f0c1533b4222faf71a35af9072be43185d. 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/CAQOI2302328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1f873e79e0f6ef7834545f3558dcd2dbde42dff1dbe7f1e0e106ee574dd027. 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/NLH2L2300155.
L'Amour Toujours (I'll Fly With You) [Hardstyle]
L'Amour Toujours (I'll Fly With You) - Hardstyle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f01ca20cb6cab0ced5799f371796a378134d8a869344665879f0b398f8d4e0. 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/DEPI82306850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947f2471fa4adf4596ff6279bdcae8c9b034d9c858ecf9422b83bd5cbc87015a. 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/DEPI82307208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d572018218d6b697860a3723573902b9b90adf4d96eac6621985fe9f2ed4df. 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/DEPI82304404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fcefb0a394fc0d00a05c5bc619b6a7cdde4600032bc3ad95085c5e49c0d422. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:09:49Z), 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/DEPI82300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf116f76573bbbe66632a1dcb0ab16f48fb875f900a6f8e7adfa3172c0a70a63e. 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/DEPI82222086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7e01deeed5f4f07ba01bc377823086ca864d3994c8f061166e472f0980501c. 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/DEPI82217314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae8477b9d5b24d9b69fccdfdf5cfa375dd575469776cc18907307e272118f70. 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/DEPI82211885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97aa86ba9d30897e446076b4fdff525a2d037c8bc2c6564b6fe26052910e362. 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/DEPI82208135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f408272a5fdfeb2e4fc50e2829915151a7d5bd30b71b480a642d351659f5a7. 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/DEPI82200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd1f2c972e3a58b94c63f07ff99170afa09adb8ae241d7f1d05610ea28bb593. 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/DEPI82108500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a8a6cec4ec01b833fed4e1b3d1f424243998c2c688e0dc8ab37ce70838ea5a. 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/DEPI82106368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f903e1d0c939c29b1b7836480161ec7d62386b655c7f6a56c96e738bfb597c5. 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/NLW2R2030188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cd3d491942b5e8bc5a7ab7c2eb9318f262187fb6d91b3936911def73d538fb. 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/NLRG19000003.