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 0xe415be702893b9c97e5c353740d34bc14a6b7bb611e39f22efaa241e7b56cbdb. 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/b99a63fd-e878-41c4-98ce-9a4e9c5595fe.json and https://artists.proofprofile.net/proofs/artist/b99a63fd-e878-41c4-98ce-9a4e9c5595fe.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 0x0c6d7183144c6cd8940a91d6ddd08ff91e932d15be6f3a126546fdb19d558a71. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHZ51903961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47849c856cdf422eab4f3b5b42c6f04af504d4310314533d0912414262e71177. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:00:23Z), 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/QZHZ51903963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970af9fcd02823e5ae87888f9dead22aedd4b02a17fcf94a37407f36e7286e1d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BCDF52100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c99fa6f8b1210245729ee29d3798016b7e0c7cb488f31ae9dca5fce15bad4ce. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BCDF52100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2a68169522a9f8fc6328b23fb9ee5a2d90cf7befb8619e05750fa263051e4d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/BCDF52100010.
Rap do Round 6, Você Acredita nas Pessoas?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766535000a80428bb81c5e2a707b3543d5aeae0ef5facc5185bcb10b8efd524e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNJZ2196798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2069def4a7670743d6fa2907591837dd4dc7813bcbbd11db385d79377993937c. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BCDF52100019.
Rap do Terry Silver ( Cobra Kai ) o Medo Não Existe
Rap do Whinderson Nunes - O Boxe Salvou a Minha Vida
Jiu Jitsu - O Tatame Expõe a Mentira e Confirma a Verdade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad7bed7e5aa19035666bfebd2624158408726aab23d7ead3290c790a172af17. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/BCDF52300007.
Hino do Chute Boxe (É Tempo Ruim o Tempo Inteiro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fadcf3a296137b4e27dcd71c3703985ed47af3e0a86ff5f0c12eea716b2b1bb. 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/BCDF52400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3af16c372509a98d65be6d632eccc9548acf133a9086b4cafb43166e077dd36. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:00:34Z), 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/QZNJW2421280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fe0cc32a4429836de305d2ea3cdc96de519475bac22b740c842ac8dd72a08b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BCDF52400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74b8798ca4d4b7cdafbec8e31ebfec5f4bd37de7618518b4ffb55fef1bce70c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BCDF52400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe360ca746e9a82b7c9301fdd52a67400f9378355ae239a442af4525dd9716498. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:59:14Z), 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/BCDF52500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0bed11348344ea5ebd0e2ec9875d3f238f449e3ce241b42c5153a1f0d509f8. 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/BCDF52500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bcb0dea76ffa40629715f90f961da4908778aefe3d262b727ee992204bf756. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BCDF52500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0bc3792292504866fb20dbe7bb5970d96899f3540b1463bdef51df9b9a3ab5. 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/BCDF52500012.