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 0xdfaa917365f7715c6f8db1edeca55ab879b40cd898058ddd456b5c9e5273baf2. 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/deb282af-0c1d-4039-9943-efe4036e1b41.json and https://artists.proofprofile.net/proofs/artist/deb282af-0c1d-4039-9943-efe4036e1b41.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 0x5bc4ad28e59837f5813e3ba101e465cc3489ef308d4ec649801fd8be5d7ac6d2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CAENV2428805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b07edcc2e1497c3523df57504e20a4e3ca091a48dec6c70961ec469150ebcef. 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/CAGOO2443406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385b07ebd15bd600fb566ebf533b42bc21d764df02f23b1fbe2d49d3b8d330f3. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/CAGOO2443346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa875357e79b71ab1a5ddd67d8999147496c10b46e405673f5c8d876bb6bae7d6. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/CAGOO2471828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989bc3d9e5545c9de69fd0ad5138cde1f1e6ca3297877df9d4559c0f7dedc79f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CBEYJ2403320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba82e303e9a30cf8296abceee0a31fd0979a149e4ee5d479429466213a4009e9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:51:58Z), 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/CBEYJ2418042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b62f8b52b061e3cac172f7e176c149b64cd845fe0e5e25269031dc1302304d. 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/CBEYJ2430111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dd33229a2213950e6fa05abb46148d0006ea68407919492b5d7aaea069f4a8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CBEYJ2445901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7fd7cbb2c3cab6cb86958aa56c156f90c2a0eab423a7d1dcf0d340bdf99e9b. 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/CBEYJ2461920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4635a89048d766ff064b311a38ff475f09db5f98ff47dfe287fe1f94e9ac886e. 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/CBEYJ2461921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c86c21310687ff6ddabdbdbcd58383945e0f5f1a429e1233d95890cd38d3b16. 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/CAENV2535219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaceb3297f1bc301036544079134eee07ffa4ca11154a13ad4973be009aa20f5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CALVP2569083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2e2f496e22761205e6c2f8340fcceef4458459984afe4d9a1f06571df49b57. 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/CBEYJ2502744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b23abe0fcf1f83e353bf194ee2e76cc5e2fd1598a5093c049963b963344edc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CBEYJ2562455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bf1641dece2417ff32fed40352e76c2d894d7850fe5163743bd19d093b1f88. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:19:14Z), 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/CBEYJ2580996.
DNA em Equilíbrio: Frequências de Reparo