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 0x8aa5833532d7d6d118a4b61a3a0aa78ae047a6cadaffc9a55f3228037a60c8fa. 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/07cabf58-98d2-433d-9823-9d0a463d0faf.json and https://artists.proofprofile.net/proofs/artist/07cabf58-98d2-433d-9823-9d0a463d0faf.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 0x28ac399c6d52e20e1cf11ef7e976adce6c3692d6856d81b38d33cc432df788f0. 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/BRPGD9900379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119051df662719b536567f9cd689cba9dffa2c769477177586b6cf3ce16e4304. 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/BRUM71702695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef2d1d863450b1f0aff8ecdde8c55a739ebd1918f0e833c9925063a3497c370. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRFPE0400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4026556282b2e7e63a610d93ceb5f74ea89184ef76074f9d754d302946043e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/BRFPE0400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f8ea93052282ce4e6638c9cc93b3402ee735a36a6ce05d2f29bca03c8e601. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/BRFPE1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bd99baa8f0676a3983e567c14bc17c22fa6a903484831e8668d879ed11e1b6. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/BRFPE1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb0ad8dcb4ea3e360414a93d1d434b97ce5b7a33160dfeeb59985866a8bed48. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:36:33Z), 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/BRFPE1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890a005d40b7f532a8c15950ffb65d99fab9905bc7294b497bef834161e8a248. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/BRFPE1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a4ee5576bdcf8d73191e7883cd0b523501eaca5d70b0807a20a3a5a04e6701. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:33Z), 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/BRFPE1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56bc9f42790672ae47510eab289185056c707510439213e9b4ee9d3de666d95. 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/BRFPE1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83254eb7501075c73219a05dcff746ee71be593a8fcde0ba628024080a72e11. 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/BRFPE1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d4859aa85ad7ac79a7d9c55c216c5625e8e9d97b045b34c287b4ad7f82390a. 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/BRFPE1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356407b4bc9947f0054667e91bb1b8de2a094d3d2b8e5ea5052047b97c2b34d6. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRFPE1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68fc03002862d764c97e5933444fd867f466aa660d7f5de0dba01e028331164. 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/BRFPE1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84399b4b8a2362ef7f1447962054a58505c21bf689eed6584d05fc963aac4807. 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/BRFPE1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17b09e241c7ee0db7ad0f670494b55045def40d247c89a30dda9cb0f1f57170. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRFPE1900006.
Vem Andar Comigo (feat. Marcelinho Guerra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559d283591f93be67997191aa96b0d91c1e47750dc5569d3e3e5ba93117c3932. 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/BRFPE1900007.
Assim Caminha a Humanidade (feat. Amaranto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03e734a6b796f19d763754ab0506fc089247738944a3173c113f2c6db1db1ae. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BRFPE2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f6b73dcfb504bed340582c6373a84867ec71a3a325d838eae740a86e7077c6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRFPE2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf9f6f0a4cc17201d96e40025029f36aaf86db4f36f3ced290b643949f06698. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BRHUM0500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517834fb130862bfd9bce5ee9705493bcabb2c602b1cb34529abbb2320026ee9. 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/BX9ZT2300287.
Blecaute (feat. Wilson Sideral) - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99841b19a4edcfa7d6f726e84ff11b1fa56a0a62b9e60113e429b13541d48ff1. 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/BRSME1600164.