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 0x341b8c4fafbec1da9cf4d637513cf08d94046fa0e90f89fac503e2d4319d9a82. 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/561e45f4-6ccc-491d-8184-c01c5f2a48e4.json and https://artists.proofprofile.net/proofs/artist/561e45f4-6ccc-491d-8184-c01c5f2a48e4.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 0x41a7f33fd801e8d8e083ca3ee27903e9ecd545239d4328b8102c0977c9ef21a8. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZHZ52123000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2a1d09164e8ae884dd9b5882aee467c62261d59b43263a1b6ea54f4c35630a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZNJY2168054.
Aleluia ao Deus Trino (Prelúdio) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b27c53fb7bc8e633a53742de1f9721d4d1d3b343c89598e9b92978e2ed78b7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9M2222354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efad6739f9640113a72488bbed027a43d81ccb027580eb69a23b7a59511b67c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9M2222355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c37411aec13277861344dc3ae308657a7ce672d7a2f64fa596bbbc9567b50a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9M2222356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ffef4b40491f0ac3f6061774109146ffdbcff771cf324855a8ef74331e99ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9M2222357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a334da4e373e4790312ec2c6de844c612bfbc9a9bbaf100b903aea9fbba01d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZW9M2222358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23355e76bddb3b9f13c3299af1d844aac34c22ce8619df78f62efdbf5d979484. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9M2222359.
Cristo Esperança na Vida e na Morte - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055fef6dd2742fd1d0585a8ca863d2cbed58ab95ce6a7f690a1c06056a1f3bc3. 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/QZW9M2222360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7153632e7e3629a1b669ea956897fca37fcc320b2e7f1dbcf2fda3fb3c57d2d. 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/QZW9M2222361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fe9646e3557384eaf5a3cb055704518cf5153ca0e50d1ed8e7fb43a55a739a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZW9M2222362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8bad5f23c4bdb27c4401fb347de5d6d7eb5fd787e41a72294f3b51d414c20f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZW9M2222363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e586c2ec8de9fb532e29aa9e5794ba8a73188a2fa81484d19d2c4113aff8e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZW9M2222364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9798e2675b5c3cdaf9f506f20e844a98a537ac1029e7188e95f5d76d23452415. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKU0A2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff909d80dd6f3adbbadea8073647367aa9ab670ffdcf1e4d5a76bc5415148c7d. 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/BCUC72400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6d70af7c97393ea8f601c04b8527bfc6d52f3b08d62bab18e69f6a2bfa3110. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCUC72400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4900ebe2cfe1e99ca9ca25e8cf535ee14d0e7eb1095e13bef00506cb26d6adf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCUC72400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7244ad386b7375f7938fa70428b2f8084d6dd7b1fd15c072931be5a999176192. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCUC72400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff909d80dd6f3adbbadea8073647367aa9ab670ffdcf1e4d5a76bc5415148c7d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCUC72400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05118a110810afed9e2419a564b9a2a2575763b53308ed9b029300245eceaa3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCUC72400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6b128f2e6f4e7b0294e14cf8cebf22a0059f816424a8d53884a95df81a7db. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCUC72400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0b2990e1bb37b470c6b16660e2a833061a1189996be5d4ed09c1f5d614ca2e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCUC72400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b0c5c383aa602238b9f45c227563daa3e13affe1b7cf439e9b5fbc17a24b27. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCUC72400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a43662ec418793a4b3fa291bbda92b1f31ee953c251dc999760ed53b873a11. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCUC72400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4003f75ce270cc6323af40a9f8e7da0d1099fb2fe3941775f377fd2896f111. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCUC72400019.