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 0xe5e9bd7ab3dc7c7bfa5e9dae1b455482ad35321ac4ac3c08879121100ba64667. 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/f140d1f6-fd2e-48fc-b9be-7a3bcb3b9839.json and https://artists.proofprofile.net/proofs/artist/f140d1f6-fd2e-48fc-b9be-7a3bcb3b9839.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ora Vem, Senhor Jesus (Canções de Ninar)
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 0x45af98b77959ad0a17d4d796ddd4f40673d1353b3e3dcb00fc141b22fdcd814a. 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/BRFJP2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5504f42a53f0827aa5bd8d12a2c30daeef9886166318499088eff46030e5d26. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/BRFJP2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f44c813781c5087b60353632d71427d91ed26b1675c5b07feff5300efe70c5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRFJP2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c091b1b7cf72fcde9a19cde8e6c6abb434038966504511759906877f622904e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:03:10Z), 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/BRFJP2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c99c0815935ac999e34aca6f20b4549f5176f604db3470f70f74ed21c0fb78. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/BRFJP2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1732d6cf437022c9b04f39bd544e1a047ef277a7917d5e6482afaf00f5856234. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:06:49Z), 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/BRFJP2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafba729e987314637ea039e29c0a05a87aef410988842c026df626703f6ac3aa. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/BRFJP2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d1d651bc68dcfe01d2b835181b2104058ecd20e6500e49fff3eab6484de282. 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/BRFJP2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080e6ca2d197edcb5b4c8add1b9a592d550f3271c25ac48647b54feba850d17f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BRFJP2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae221137b54fd18888a86c510f499a00670b16cb6fb365bafcd167b81b07c359. 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/BRFJP2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb6c030894a726a72b51075a7aeab55c8b3b1fea2dbaf24f862677f35d33d4b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BRFJP2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289d7c80c5a7e52794c58500b13f1289f5ded0df733a6f36ab9c3011bd78d46e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BRFJP2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdc36d5dfa4ac1b7679ad0e8fe5c727832b132fee60476074c5c0a1afed7c94. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BRFJP2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadec8a3752c7c8f5e64abfb7ad6b01ad33365e027491e63e24977ffb570e9248. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/BRFJP2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9ce94423bb558c65d75cdb5d9db3ccfc4403331b5393ac64c517d2547a6fb5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRFJP2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ad4025be52872a69c4de811aebf78dca5b5fab26a319a631416fef5d8ec79f. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/BRFJP2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40de9273abf97d35bd9ce8afd9549c65dae7c911cc83b6317dc9c5252ba36947. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BRFJP2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdeffb6c700826a551377835a290750dc0556e80d98043ea04c084bc623a12d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRFJP2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa4ba0f9d8924dbf2bb83ca151f819426e80a7ff21a3a66b7f3e7001ce581b0. 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/BRFJP2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f1f6ecb67593616950978f4e6a88f6b8457df0ec54f5954a90523a8a98acc2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRFJP2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a563ff90a3817b7ec76cc22a7551115f0c18255feadc8951daff72f0dbada9. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:31:18Z), 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/BRFJP2100026.