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 0x57a791113b32235a8c48cf34c52b248f02a0f5a35cc19e8ab7974ffc58a619fe. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73a81929-f613-49c7-9fa8-49540b6aa62b.json and https://artists.proofprofile.net/proofs/artist/73a81929-f613-49c7-9fa8-49540b6aa62b.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 0xb0b423d5c6f8aab65a10410242261b211592a19f33495f85cc24e19f8c28029c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/LVA100100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c946586e908734575b076f4c09736a39b53b3d3c5cf1b30ce9eb487bfc6a13e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/LVA100100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47251ce3131f2d00a3b20421bbc871bc2023c01883e33507d1a57e198f848b7. 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/LVA100100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0349b2ab5a21b08b98dac54492774d744d097326dbcfcbe36f47f84b0ebd3b1. 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/LVA100500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70346d0f2e40c4dd1daf8e84442380568d4f9df8beaa8816c16b9fd1f7cb943. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/LVA100500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1083a37af9359708077abdacff25ada3c222bf7153afc4e183e891c3eebc5e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:58:57Z), 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/LVA011000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5cb68b2cc21704c81df4e27f10efc2b5982fc8aff3892a2404250d199cd3d9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/LVA100300306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0597f139e214c65461df0341b4ea65ac8560f49776ddc29d3d9f2f86e655966d. 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/LVA100000225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c946586e908734575b076f4c09736a39b53b3d3c5cf1b30ce9eb487bfc6a13e. 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/LVA100100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f652cad655e7850bc8ee958821e4651a8002c9db9f9a38df739a434bc17142. 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/LVA100200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9cf6961acdaf1b09f5e3bd9afb2455f9891c919bf84490e6f70a2a4bdca524. 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/LVA100300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a399cfbb1a75225574294518a28ddc039a8a33d99678f1beee063a86e3b7422. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/LVA100300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ee2e05ecb22c23a95cb7c628a025c17ea21f334657bc125c42a0c6b09381d8. 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/LVA100300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cbdd066dd78b44f4f9c02fd3c9d1bc92209bfd19ba69bcfbb7d166a3681aca. 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/LVA100500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1453c205a29a76f15f9b26989e28f55424e7d8f5d683ccb7748b88c1c896f0. 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/LVA100500164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaac7f4df9325bd22709bfc4b57987fa58f8aa3cf9bf5e103252461b3a3c1bc. 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/USV351456398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d0d52003dd8ed51205eaa535ffab7e6ea34d8c29c9e0d144cfa8a2d7ad0403. 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/USV351456400.
Atskrien raiba dievgosniņa (Mart Inc. Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5123e6f6b556f446e76c1876201b1888591e5974602c99ae6387f32143d21ccb. 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/LVL151901076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc702f41b84d02382f3b42f6408373fdb2eb1268b90164a59c84c68a53e48c67a. 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/LVL151802925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c946586e908734575b076f4c09736a39b53b3d3c5cf1b30ce9eb487bfc6a13e. 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/LVA100100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a399cfbb1a75225574294518a28ddc039a8a33d99678f1beee063a86e3b7422. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/LVA100300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ee2e05ecb22c23a95cb7c628a025c17ea21f334657bc125c42a0c6b09381d8. 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/LVA100300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3ae22691125670dda1aeb4eba7f12281c3e9300fdb3d67229f5c98366da423. 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/LVL151700506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0591a85495e349c9f2dbbf0fc640bb58e12bb4b45c7dae3b888eef75abc62353. 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/USV351490138.