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 0xffbcd64654f634db6b033f66824f0023d9801ff1257c796500378cc6547bd247. 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/127daf75-009d-425c-b38b-f7f2d77817d5.json and https://artists.proofprofile.net/proofs/artist/127daf75-009d-425c-b38b-f7f2d77817d5.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 0xec76ff4a7251ced37156ce2a2997283805eb6bbcbe91fbfbb2515f883417500a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ762477728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b98582d24f99420308bd6a647cd604e3f455cf9904253afe7e78358eed1981. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MXA3V2423387.
all the things she said - Hoodtrap / Jerk
YUJI X MAHITO - TORE UP (Slowed + Reverb + Bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138fa5034914a0e06f455c9edf3eb405595cad63963c8157ee7b01ce169879f2. 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/UK6822503555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960f1973e102a4e42885770806714d4999d60c0d735d3d4645f45d05c7dc54a9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM7282550927.
all i wanted x rinoplastika - Hoodtrap / Jerk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1bf9704b0ac3fde1c442345d2fd73c3e63d632db71bce411897c29ed125058. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMDA62520646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b3b33b0d49b4ac3261b0d222f556855c32bcfda524ce1b4435f269bda16d53. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QMDA62521433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0674d5852fdd8b23cdacd5b24b3b5d20021994d216b17e78b07e00bee18baa. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QMDA62521437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0923e33f2f9e8435717886d4349706c4947877e343d162a29d14a2298f0117. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEKB72544793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c5e2128ac06fb3ca2147f793b53f3a08b80af7210ba2b377a154c45f975857. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/DEKB72544782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17734f07a88032e16d0e312af2ff1078a250bd2a5ca8d5b16468b53181a1f36c. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/DEKB72544780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae98ea4f7bccfb891cbc7d8845eec7da508b4ef0da40f4d681ecc8ea4c38d383. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DEKB72544792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9009ec487d80d6bbae2d3cb386ae686cb644822bc2ef301b1d9154f01e7eb183. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMDA72516276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b16513c2a8245b74ca4361d5b5bed28aee977401dd6d3a4e6a9b708f392624. 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/RUAGT2581430.