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 0x328983ff76720a1b4515f6918c6b3b478d912c14c3838b358c08fcfc7de1cd30. 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/0d1820ee-dd55-43c3-a6b7-a6397b0a754b.json and https://artists.proofprofile.net/proofs/artist/0d1820ee-dd55-43c3-a6b7-a6397b0a754b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Звони Эмилю (prod. by shawtyglock, Roks, Waves B)
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 0xa3f2997ab68dd11a7d54b86f07c4469e6dcedd560a7571c102e92abf13c8ee1f. 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/RUA1D2145674.
Исповедь (prod. by GloryKeyz., fonkyfake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c3654fdceccf28638494dc523266d9ff9df619c42c57aa8380de609bebb758. 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/RUA1D2145675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50905194172081aedec740b2d816da7346c00da59d28d18abfb440b54891b4bc. 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/RUA1D2145676.
Вампирский щит (prod. by GloryKeyz., kaguya, enoughsleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf1fbd1afb3d2853d740e9f23349a19bc817231131c4aa9053caa345621140a. 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/RUA1D2145677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc3d9cd42e9b0d63ded600a0aedcb0fb802fa9bb13e2380d69d9d65696b589f. 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/RUA1D2145678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2649078051e8930118a56c6afa058d5fcd3b0a596b54e0369b5ae6708bb40b5. 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/RUA1D2145679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6333c7ccc29acb47345371a4889650a17d86238bd922d1bf8bd9474d27e999f. 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/RUA1D2145680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e724ef855fb00db2947acb29608e86f316c8e75f8d42ea423ebffd1dccafbc. 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/RUA1D2145681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243981b720659999e9fe4b944285893adf83ff27bd9f0fa3ac6817f80326ad4c. 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/RUA1D2145682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295b72b8a88417b41687ea5c9a7f51ad4b4c38986c967f94205fa5d04d323c47. 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/RUA1D2145683.
Blood (prod.by shawtyglock, bronzeye, DJ Chell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03d8bdfb08c5aabcc60de79301dc62435454235eba2a6efc29b4db4d30bc4ee. 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/RUA1D2145684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df055c8590353b5ea29d595d9beec51f3789041de51bd13b71e5bcd0832f0cc. 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/RUA1D2145685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a976dd1950a42253dbc59460857891d20946c14b46ee10b508a46a0ddabfa9c. 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/RUA1D2145686.
Уродливый стиль (prod. by .moontalk, shawtyglock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32beaeb302b92fa45f374f67f2fc6030e1f610d04822016b21ceadf4f43aa738. 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/RUA1D2156298.