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 0xbc5ae52bd73db4916fbfaa6580244122014aa3f48cc635c1afa15c9fa1b612dc. 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/1bf6e76b-dc3c-49f2-a5f7-ad47c7cf7f4d.json and https://artists.proofprofile.net/proofs/artist/1bf6e76b-dc3c-49f2-a5f7-ad47c7cf7f4d.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 0xac089ea7207801770e4204e12ef740b608d4d5872303bb21694689116bbbc8c7. 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/ES35G1200937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cee4a78a58e0b5bbc6a95e2b5b4275e392247e3018f7cb25b70e19bc9f6323. 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/USA2P2226319.
Caminho De Dreyfus (Rebolledo Remix) (Adam Ten 303 Retouch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9580fd333e8ac17be0be2e83ea8968d08788e58f156693d2df97cbf59a31063. 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/USA2P2226321.
Tutto Bene (feat. Ruty Klein) [Polocorp Dolce Vita Edit]
Tutto Bene (feat. Ruty Klein) - Polocorp Dolce Vita Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5c340a0199a4760ef69ccadc009098db6fa3a69bbb459361eafb9b3cc45e6d. 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/US38Y2400673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426d6b05991270ab50aa37a6880fff3a160fe27c452f37ef86389cd612e207a3. 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/DEBE72300632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720483f65655ad3d972f2ffdf008261503589f6553f9f3efc1a3db84225860b9. 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/US39N2307530.
Tutto Bene (feat. Ruty Klein) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb46ebc4285d9c4fdda15913a042c4994fdf4a6fc0d09f24ad72ef59ee606ec6. 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/US39N2307531.
Chutney Mayhem - Chaim & Mita Gami Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f84c3db62d967908e7e82e194cc62790904d12f4123e7e03ef6b8de3aa731a. 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/GBJX32155012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7445bb104fb565d87c7f431786ad8c87a5921fa9ba51e3ec3dfb2069f224ffb6. 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/DEU672000961.
Don’t Let Me Down Part I (Atar Mayner & Niv Ast Remix)
Don’t Let Me Down Part I (Autarkic Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4003c9e07a0466ec6222fd752565aab0d92451373d26d07b5db6a35d89e65db7. 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/ES35G1200896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9e0814bb40c25adc293ec256b9281f0e15e83fb46cebb5255c93d061f10f85. 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/ES35G1200898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c8115af32837896977644f31ef86705f07ee569187e3bff94901b9b253d036. 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/ES35G1200899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2c41f15f83010038b36882b4fce1b4afa3b10d7e358b30793cc7a0c43c1099. 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/ITUXC2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d028446c963d949b221f26d49be34e356ac156e2a57387d531089b279390c6. 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/FR0ML1900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dc40d1fa891a49085bbe0f9ef1592944e6727281c0dcf7621f5100fab47ec0. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:56:23Z), 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/FR0ML1900190.