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 0x57b297f4868bbfdb1b9d2d2699a5eaf9fb3ca19257b60a05a8bae845f22f47e1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87db9e5d-d441-4d7f-9486-f7d3b273acb6.json and https://artists.proofprofile.net/proofs/artist/87db9e5d-d441-4d7f-9486-f7d3b273acb6.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 0xdd5b8d177d344286207dd15f61146c3f3b6a0e008b05087e2668697d18d39489. 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/QM3DF2189626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c03f70da9310eda9a349c51b4c875fc3c15ec0398134a3ef4e4ac942c04584. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QM3DF2189624.
VOCÊ NUNCA ANDARÁ SOZINHO COM A INFANTARIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a72d7a9be54adab0c7ca5dad9d34e484cf5b9ce8608fe0ebbcfd81700e4920. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/BX4IU2359918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f7f2fbc4b014b9cd8e58ba9e944b2e562e395d4cadad0426aaf0ee762299bd. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/BX4IU2359919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d2df7963fc8057361f9b407e3ab6d1c84f77f11a9bec18bebff3a67b113ec9. 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/BX4IU2363786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b284f9b9cdb24e27de603dd5e4241ea7195054f48f855108d8178b906a7eaa3. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BX4IU2500036.
Quando Eu Morrer Quero ir de FAL e BERETTA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a64db91a61b6c5c57935bbcc2c27b20e9b9953cd88170b28aeaaf67213089fc. 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/BX4IU2502116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed238527313e4b40e855926d2411c99e2d6938ad868dc0aaf87a007b0f58b750. 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/BX4IU2503794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a4ce28d37004ec1189de175313c4faf829ad1dd9521794b456eb8f9502673d. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:24:31Z), 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/BX4IU2505380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e12ac5218de29058df52a2d9f4153b3659ebabe2e1a6c5582eba5c723d99dc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/BX4IU2508113.
Dias de Luta, Dias de Glória de um Soldado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a298adcad5fbb1f4a613463498efe98bd300573931b1156a5dcac33a23ef7f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/BX4IU2509602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cf3e1b2d2211c8474970414c71b7a16e0560591d10bf73a7e08b64fa36cbe0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/BX4IU2512179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3932c1bc2ec710fd6da28e7a04edaa73f968f833851f92ba04c989d931d94ffd. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/BX4IU2513556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be0cfa427ff4339da365e732779600d58f15d5d32a54ed100fa4c4f9232cbe0. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/BX4IU2517480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c71962f2ab23a5c5c09ea8b414649890d1af8777bef85d64ae1f07826569be0. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:47:43Z), 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/BX4IU2517482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edc31c524c268459fb334a5c44456ed0d7f0e7f0533f880d86ad7b56b240304. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/BX4IU2520772.