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 0x61c77c8ac49cfb444be7f9a58f07f8125e55265cab4ee2f80b849e7a8a1323fa. 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/b0410e24-7bea-4915-829e-3891a986960f.json and https://artists.proofprofile.net/proofs/artist/b0410e24-7bea-4915-829e-3891a986960f.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 0x537879554ec64f234d65b3b1991f1b62aac6da7d557b08b7486763fd09745f9e. 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/QZWFL2319409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298623535945bc5545ea633c706938a7c2d2fd27eaf49f9adf4618dc8a75372d. 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/USUYG1542647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f63b1d07396e7c92f639e78776d7dd56a06810833474887f93e98a174e6aee. 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/QZNWT2324727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2441316d902fd62949c167196f80cd47e69e0d2bfb6bc70267c0b4068a2c09. 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/QZK6H2449695.
Have you seen my boyfriend (Freestyle) (feat. Zeddy Will)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095dd2c67d63a457638552006dd74ab1e461ad14c18d3612a3a72b40ba0b66b6. 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/USSM12403011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f30f80b65d9c67da3176c23dfc8676873646480515b8fbe24ec3c89cebc16f0. 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/QZJ842400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325ace3dc63c76b0ade9f5891ca3e2aecc4652a7efd638edc2ccad9d605adf75. 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/QZJ842004422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8b99e19a0b877601119e467147ddef8ae4f15c7d52523173cc2dbe6d019631. 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/QZJ842004423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537879554ec64f234d65b3b1991f1b62aac6da7d557b08b7486763fd09745f9e. 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/QZWFL2319409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34214fce7ae5bf6e3176b1a054f859401aa2a8634d8dddbb29ef36455bebbf11. 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/QZWFL2321896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba174bdf3e153fa84283e54739cb86b2d96789d28cfc490fe4e7f6463d522f6c. 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/USA2P2318604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb531ee0d2d14415e94547a12d171a112aa3c95126b8f60a4a7d93856ded97363. 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/QZHN52372859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e33c39f24ffe313f95db73e8106aae576b6c7ccedd1c75fd3ef86b6202f3160. 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/QZHN52300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a70758670dc079d6d20a3822f661c620851248d50f771d14555a60df639dea. 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/QZES52344525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7959e83b60d0a256213882bd9427e8cfb944b792cc82b8d1dce3e6456fe6d607. 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/QZTB92245172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796c4aae000719e3d0da4303f0d24fa08f1cd70ea61fcdf43dc712d0f052f3a9. 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/QZK6P2257342.