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 0x2c66a5a09a382cff8d5d2106d9fcd6b5cbd256ff0e52e9a0406891af4c872b8b. 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/f74e95f8-4082-4d34-a579-536a2c4c25af.json and https://artists.proofprofile.net/proofs/artist/f74e95f8-4082-4d34-a579-536a2c4c25af.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 0x013d0dcc48736ba3c55e5c2f573a0e72881d27d84c72df0f0ba858adfb024ffd. 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/BKFUX2305474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5696bbdffc15f6f2ecb60794298f7b61439c5e82510e2c06e478256ab8a5c029. 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/BKFUX2305481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916cec444f805eadad4692bd774b19b4a449da586d50645e8ac8133b5c365837. 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/BKFUX2305482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab351ec0a889c0a7b88427603adb51b9a899b4c43f22edba0c3960f41fa0bef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BKFUX2305453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d28f355f8597616c11a69854881537e87bf6bc47fa1f95e1bcd15aeaaa49e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BKFUX2305452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9561da8799ee445e8d5c40e99c077a76e2fce174aa7db8326a1844d379b4222. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BKFUX2301320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da638aa1e4209cf10eb3700fafd292bcdce9afc7d70cd9de918b1a79e658a55. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BKFUX2301313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fc76a43870925ae34db1ca6670c6a3b981d50b9714f175d854b936fc68c78e. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BKFUX2305486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935870f658ea1e2021870530d07c1c2e9bce6a4c40073490c9eafdfda1ac4f8d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BKFUX2301139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33542bdc13d1c1b0ffe6493021eb7b41f4e2716fc46feb46e1af103144803980. 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/BKFUX2301665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67c4b7945923aab36716a8d8fb901fd72049bf7c052c7df6d54d17f84a850e0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BKFUX2305472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d24d39f7f5115d9ce90fd752d4113373e7dd3f1b2bb116d6a8b386d0535eca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BKFUX2305473.
Automotivo Modern Tetris - Brazilian Phonk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372c7da76736ff6e562bd45f8d42e4218bdd53cf46b29f10c8c1ee4e43b14506. 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/BKFUX2305510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb23e5b2d0cfeec368a9d7544b688dfd103998de53121dc1676b114998de0b3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BKFUX2305493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2626bc84f6c2558c8044a7e79e7bc0840c28ab8cce7be92f8cbf0a6106538e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BKFUX2305494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec219ddbdf85e9fc2fed5ce8a4ce69543df0c9021b81c94a929ff097dc709d2d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BKFUX2305495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c19ef2504f4da4205ca7566aabd3564c6d5d891d6baee14629e1b34d5c7d951. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BKFUX2305496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb23e5b2d0cfeec368a9d7544b688dfd103998de53121dc1676b114998de0b3. 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/BKFUX2305493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2626bc84f6c2558c8044a7e79e7bc0840c28ab8cce7be92f8cbf0a6106538e4. 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/BKFUX2305494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c19ef2504f4da4205ca7566aabd3564c6d5d891d6baee14629e1b34d5c7d951. 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/BKFUX2305496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242fc7cfcc12ca7a3a265ab1566f1763b8e938af278a1d62b9c2fd4ee10d6cce. 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/BKFUX2301618.
Automotivo Bruxaria Uh Papai Chegou (Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c480edf57723b6f5d4061fb90effeb9e5be96c151ea5824c50e73ba7c7a6ec. 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/BKFUX2301620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7f4e8f87356ef37a90935d1017460d3b85fe8e8f2ed2e66cef96c703acbe1f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJW2481191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f24042bea570695d78c1794b44fc8321560350db48c4893e19b0dfa5f898a4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BKFUX2300765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878b23e850f205a36daba0561d70c5c311eb62710ab5e10919e33d444bdc0681. 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/BKFUX2301535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8f33883afcac60c13b69151439674f1714326386f6ab6578b96653a4b74474. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BKFUX2300692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa410c0abeb3e21014967b45be6a17a2f9640354375ea7a9a9a12439bcbc7eac0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BX4IU2409440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedcf87361a8c58dbd161ab89d6aee20f0c398723528528cd508562396439a31. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QMFMG2367750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76127d78d87190746040c5491747b44c18bc3c3da9a9d2fc6aad23608c1ac39. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLM2332013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61d77f77e63d3491cd0468c005b1a3b5caf0df7bfd348aeb7bfec191f649746. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZGLM2332008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375262e32685f06b12bae58209bb75bf6699ee8f50e6308cfea0e203ba1f3f69. 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/BKFUX2305419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389c8119b3a912ae6351d866661f606ff79c51e2918282177bc542976b21f6e6. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:34:35Z), 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/BKFUX2305367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44eb90488e222f725932ed19745fa83a079f23363e0993cf77d3b85a3083a5f4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:42:12Z), 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/BKFUX2300654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf66011f10195c54115363f41117c7374031b1cb2dfab3bc11f818d35c612d2. 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/BKSAI2300057.