Gotan Project is a Franco-Swiss-Argentine musical group based in Paris (France), consisting of musicians Eduardo Makaroff (Argentina), Philippe Cohen Solal (French) and Christoph H. Müller (Swiss), a
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 0xf756fb910185b7c212653b47db40ae28f2f9625a6f47c02758cbb4d5f5dfb86e. 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/43632610-3b7b-41e3-9ed9-b93082eac908.json and https://artists.proofprofile.net/proofs/artist/43632610-3b7b-41e3-9ed9-b93082eac908.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 0xb3a98328e0a84dae073b8b89a7c022bfb24f5562c95778a5c62bb3724d6a4be3. 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/FR99S9900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8760362e119fe2b930d61f53861ff0a6922148926d9a82dbf19d23e29ab9010f. 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/FR99S1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026ebb7c322abefac3ba6a6a17bcaab8df8da025acf70ee31722b9881e36ff72. 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/FR99S0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bc0fc38c7656b3e0ad81d0b0ec88499c8426dd632a606c7ba06bd43f1b1308. 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/FR99S1000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a2cc21c550b16e87a8206d0d370bab6d1834cdd367183fb31516a4efd569af. 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/FR99S0000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bcca14a48638d1dacf04aaf0be0fd5a18880d11d5fefd458b4ed55a4424d07. 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/FR99S0500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08225216016a08a34aed611920049f6dafade65dac93cbd269a02c9dfde0edb9. 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/FR99S0600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b0a1b58a43d7c740bd4e0f737bd4b0a2aadbd7764f0388d5c5fe2fbf52c4bf. 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/FR99S0500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3855b8d3782e92283471df1a75bef21538a5a01cacb6b416acf315b19b7298dd. 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/FR99S0500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9534751be04a25ea7dad79fed71e3d11d315b601b105f0430fd9a6d4b6962413. 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/FR99S0500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022eb46520a6bf7b81e35c7729a98daf85fb3f4853204de3e7ad5146cc5d3bc2. 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/FR99S0500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb295473a3c09da421796dbfb645d6926210acee42c894dde5c3d2a5d811963c3. 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/FRR640790078.
FG Chill Out #3 - The Deep House & Lounge Music Must Have Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026ebb7c322abefac3ba6a6a17bcaab8df8da025acf70ee31722b9881e36ff72. 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/FR99S0500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac35b84c6d25ecefb5b0cc8343c385f8848f40333a95d9c77e19a3c688e817b1. 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/FR6V80416501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4600b531f8d7ab635016bd1368f9de4eec7913b9df8ceb2f9b65120f1d6c2c. 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/FR6V80416502.
El Capitalismo Foraneo (Antipop Consortium remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67087c3c55307c9ad037af16c573c033c900d93411d8f09fe290a377412ba41e. 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/FR6V80416506.