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 0xc7a277c768453ba9812cfece703a26106b73938d6902099f99d674ab70b1f14d. 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/2e9a34d1-d255-43bd-aacf-663ba8c07921.json and https://artists.proofprofile.net/proofs/artist/2e9a34d1-d255-43bd-aacf-663ba8c07921.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 0x0a816bcecdaad54c4705c1e67fe974e43fcbdbe199e42f63fb8087077522c611. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKIQD2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5039c32fa8e2cedc3d66574052cb28168c921237d4df53873f67ef41fb8d73a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX762463795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28751dcb4a832d427df4f64596bc02609059e55e58bfde4f20a5c64bc214afe7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTPX2440203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213f8f8dfb2ab390cc52c8de7abde3ea7cc8347f2030ab0e231728e38d0b2d02. 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/BR8LU2500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8537d1edb395044e1fd1b9833a1f0920a4a832bcc41553761eb6a6ccca5c2da5. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/BCDQH2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29ae42ab8d698ae36155e89432da5257318c52348da8a82e8ea3ad25adf9d04. 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/BCDQH2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc10e730002996c2a2b44de8edc821b4631dbacfffab335cd480de927432926a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCDQH2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404c96bd62ff00bb4888b98374b6d04be84c2c462766a37faffebd6dbbfa7012. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKP9S2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfe1bc0bf4cee2a025d611a1f54707e45fe7a44e8f91e66f87c99cb73e48017. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJV2425464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97ad24b3e3154b3c64884a73f471ef58ad109bdf45b0f620e032e60a833b014. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKP9S2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610163a06d488632cf45c14e303f12d6e38de545ea2c22f2ceb0280f67706ba4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR8LU2300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1dd807ba7e3107d504c373c1b33108050f7c0c3a8b396235df57815f67cfb3. 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/QZTPX2399153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fb84aa819d1bc9d589bed158f875f60aded47dd16fe5ef941468f46dd4324d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCGFU2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbce2da09638fe9359bc6338a922365d65eb3f52bffadaee99f74ed7e55cb4f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BCDQH2300001.
Quem tá com o Brasil, Tá com a Betnacional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b6a8484906f08a369fad267b7e2928d3a2daeeb770368c0b058bffb248a4fa. 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/BRFBE2200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a574793c308e8bf382271d340beb46fd3347ff82d130d656d8487e8095c36ee. 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/BRFBE2200019.