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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b005f5e58ef2b6cfc7b70e5dd3598123c8ce4b51e3d229f75fb9d839d75b5. 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/0c1f68a7-7898-4298-ba07-0611df7ef814.json and https://artists.proofprofile.net/proofs/artist/0c1f68a7-7898-4298-ba07-0611df7ef814.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa296168e4be2d0294aecf1a891bdc7f35efc2ff48fce2cfbf3283b91cf52e92a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBSMU8291120.
Latino LoFi Remixes & LoFi Edits (Latino Meets LoFi Vol.1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d37ab64ca8ece932d3a4c085aee9e9f47d491cb2c8d12604ca64009d3f6cfc. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/GBSMU8169319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2809002c874cb6e2a539fc03e02c7c89dbd2f70019b7332092b64a4584d97b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBSMU8291115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8e2eb71d05946375baf4f11926d74f6badb0848be7c1d89c1f66056f5954ff. 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/GBSMU9613049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4642ca629510e73d92e5346d75958d0b469aec45026e9a6d7a1e32b017d799. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GBSMU9768930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb88a8cb547a87f54a89ec0616864b2a756453b0a7a8e4e6ddf2016f30c1723. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX5MX2202813.
J Balvin & Bad Bunny (Instrumentales Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb88a8cb547a87f54a89ec0616864b2a756453b0a7a8e4e6ddf2016f30c1723. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GX5MX2202813.
Latino LoFi Covers of 2022 - Mezclas Lofi y canciones Latinas 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee681fc79401aaa2ffd5e049331f4f654da720f5cd6cb461f11f6f966d321940. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GX8KD2240780.
Latino LoFi Remixes & LoFi Edits (Latino Meets LoFi) [Vol.5]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5673e6181c0bee7b024993c9ab69f462613178163648684075df6062c7815ab2. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US3DF2414276.
Si Antes Te Hubiera Conocido (lofi edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d63ca9321ce9778724f7d9c9193137de2992485aa186f41a6d3ca2b69e2856. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/USANG2479753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f9e1f16bfb150213bb49f0f5d481118706d36e13ffd1a082941625000a45f8. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/US3DF2503747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552d85cfed5a8e8f57509992da0acb09464823c7fb8d178713a64f1b83fcfd35. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/US3DF2505149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8f536de972b52ad753d5d9c02db3575b133a189ab098a3d443eecbbf21fbf6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US3DF2504863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca5ce05175a5142025c10e203d98f3dbab788878577fa9b60f16ccb96d47284. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/US3DF2514188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3098f18d6e9bb809114a1f4a3571688af6613be64b3faca0ea9a1b75831ef505. 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/US3DF2521674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed80147811e514896a154feef5a0372d24c442420226e83d095295b5a559539a. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/US3DF2524184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf05f90cd1b59eb110eed3acc616fd0e83f0fd8d874db7ae351b02cc188da7d. 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/US3DF2544683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4406b0d56e71c391d19b672b704045d714ab8c1bd14a4bbbb4f8990407d109. 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/US3DF2550759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bff642763654e960fa09173e2aea7a2985f30a4d1f1d890c960e453534c8e7. 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/US3DF2573270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73daab970e71c7e16b3bb17b3594acb54d7eab68b0adfcc4fe47f970a229885. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US3DF2573271.
Daddy Yankee: Bzrp Music Sessions, Vol. 0/66 (lofi)