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 0xc0f3010747f9d50c756cc3f33ad559db26ee77dd9f578b85122c94186849d31d. 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/2cb2f30e-9be9-42ed-91f2-daeaabbabf77.json and https://artists.proofprofile.net/proofs/artist/2cb2f30e-9be9-42ed-91f2-daeaabbabf77.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 0x745e71d7c611af689615aa4b0a17a940f1e88a39035b94df34ed4b975cc73b50. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BXIV82123878.
BOTA RE E VEM NE MIM VS SENTA NA BOLA DE PELO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2d5f42719e9c309a07595bee3e689ec850458aa8107a14749cdf8a94f4aaa7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6J2355202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088e270dd458384b2a5993129b9ec1575f6154f60a423108f4db50050305de9f. 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/QZRP42309550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418350f5f7facabd9a9d268318c89fa387dcd2f1284ca6b6a0c5a2a814329e34. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZTB52312188.
NO BAILE DO TAQUARIL X TU GOSTA DE CRIME
HOJE TU TEM SACANAGEM x TEM 14 EU TO BOTANDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eab9bd6c4700080df32e6677620b92fc70af1203a988aa919b26163a54244c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:28:44Z), 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/QZTB22464999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd056dfa8bc98967237133d8548d0b9584821c5b5f5f7d8980f48f254ba220d9d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWW2551307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14b46068142c6524bd6788a44115741a6114cdec2c4705c3294eed3109d0b0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZPLR2524122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af988ca9ef235b265e5058b35460b51631e1b4f72a1b051be6f60c60b76f471. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7S2448689.
CAI CAI NA ROLA DO PAI x ELA VAI NA PICA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ab33ab9bf4b0d2ef0b412ae4c4650ba780f012a297dd934399a96497c7cd96. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTPX2361249.