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 0x2a18286cc714105dd17fa2bfdf10586c1aa603ab9b685f15f2ea0c91071bdb34. 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/2bf72204-d14d-49ba-bbb6-d04ffb5bf6a8.json and https://artists.proofprofile.net/proofs/artist/2bf72204-d14d-49ba-bbb6-d04ffb5bf6a8.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 0xf825b69e002e253176afbff8f227f9f6c7ea47937edece1986d48b4b47a58a9b. 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/QZMZ92262966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b4a8aaced4a611f4748c5d975be382a24cf1869e8b553d321807bca5af6e45. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNJX2249272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d104f2545dcdedca8c344397483a582c8c9820e5794a6b8505cf1fa5556413. 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/QZNJX2259126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc247db06e36aecf1269938e64a3cd525dee302e76907c63e70a456462b0ed8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZW9K2236146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07a7e1dad8f53ccd6ae5bfa76296e64f59825ebf8dbb279f9e2ef891a1dfadb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZW9K2236037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a4d093700739f040a65e11ceb7516571abda028991c27d945753150d8e0336. 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/QZW9K2266042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccef819467c36df02469a495d045330ed2682dc5aa1df74ac9c49c65fc07a6e. 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/QZW9K2256695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c28f157c66b06aa452a4e7aa3cf433422a1b67922fc10d4a6e755aa04fe96b8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZW9L2207676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87376a806849ef0837dec212b77256f34841a46f9447c05c6aab151b32b94e8. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNJZ2384733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d65bc166bedd56159b48eef680bf972edc89b05bc1e38a14535754bcde21fe8. 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/QZNJZ2384734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4662ad4fd51c5c4c8e341f8536a2dca6eeaad1be73f3758f489b257579557e66. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNJZ2384735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e004220d93fb381ae8892762f190a2132fb610dc605be4bba1938b29a555c8. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:21:05Z), 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/QZNJZ2384738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece7a1b56ebf6c3aaee8f28ed90d26520d1abb540f46a5c6fd777c7839cb52ca. 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/QZNJZ2384740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267bf9aadfe8ea5f782958aad93718b1015f8c01b6e4c58f15e1bd8dd10fbdc5. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:53:43Z), 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/QZW9K2316987.
Um Vício Chamado Maíza (A Braba Tem Nome) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281c0a62d40389f15dfa918745474532ca8ec78aa60615d6c5e4b2ceb1cac25f. 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/QZGLM2571063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537f605c5bbef86fa97672ceab494f3207182b24f97e0089c6372b57301e69a5. 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/QZGLM2571064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed555cd45618e4573aced96e86e740e937988b1fc2dd45c58af3a8f188df36f1. 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/QZGLM2571065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5990acfbecb9e88882ca9c33f63abc7dc6744bf3fd508bbcdf5b6e019aa8f5b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGLM2571066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a1e956e896fc6a03a13cd5db6787d1521cffb81e33fa7fcdbafb1b3c67c812. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGLM2571067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d002bd853b5259dbb6183414b717bc57f04a4ebe54821758075ac3a5341e6b3. 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/QZNJW2575994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8315857c097529fb66d25b508fcd6df3cdf17fd98ea7e2b0f5ee4359adb49f8. 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/QZTPX2588929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cbe7e56b12e13ffe5fbfed512c3c6bb78b2375da7d329752ad8206db6ae7e4. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:09:30Z), 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/QZTPX2588931.