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 0x8c14ebdbb88ca045daaf362a3acaffd36dda865f1e6a9c8a5e0b90d68a14b176. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40b68579-e8b4-48e4-9d08-195e3f21fa28.json and https://artists.proofprofile.net/proofs/artist/40b68579-e8b4-48e4-9d08-195e3f21fa28.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7022f81080f8720ebbdf68ffb9bd5f613f1284c1370622ac1e30cd97fdcbe0a4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BKTTS2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ddd23c2b010cf0203c003ba2fe2f0fbf055800d0fd50367487013fdb76e016. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:09:11Z), 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/BKTTS2400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372aafe550ecbf444a1f4a8454ec5c6106eb7685b86d9a7908d0f471fdfba219. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BKTTS2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2ff6d57fde64669e70542d8210e453430d3a6c7b6ef6d75275de9e3f16cf75. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/BKTTS2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01433433fea4f6c68c0a0fee47a572202a1c44f8e826e74fb352091408475051. 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/BKTTS2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96764698ddf0c2f7c49dd415a516abdcb5483d9a157dda6c21c3bf4002212d0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BKTTS2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902d2330048859561897fbb32dd9619305eaf9a3ca2ed206b7cf28d06f276e98. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BKTTS2400054.
Clichê / Incondicionalmente / Eternamente (Pagobrega) - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9fd329c96799fdef2507134994cb037cfe1834ef554d26fae4f578f1de9058. 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/QZNJV2466777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31396a4d90722f9c7729b3f28069744ff818f6acccf85e2b019bcd60c3e8a777. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BKTTS2400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f098a5f27d9f56f8308fab389ebc1a55646db07621322181afa4f4c8ace702e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/BKTTS2400053.
Meu Erro / Vá Embora / Coração - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c435e2459dea2ebae47fdd031edd93f51eb9ec1d06de1d42acdd69c6805c72. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BKTTS2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb211e9b8e0aeccb17b644fc8507ebad7317580327f93c6cb1d0af888458b85. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BKTTS2400042.
Quando a Gente Ama / Adivinha / Tô Te Filmando