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 0x5c755054bf4041ebec36b11372ea125df6d330c3dd977a64dff3a8358ba818cb. 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/e87b385c-1651-444a-b3f3-21be6ddbbcae.json and https://artists.proofprofile.net/proofs/artist/e87b385c-1651-444a-b3f3-21be6ddbbcae.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 0xfb613ebfde27fd33852667c039aecfd67d2f1d503cf4c5b2ccc61ab2af84fa91. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/ES5079200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6ade2d442b7ffd54449743587d7bb09eb2229cd99abbc580969c314ea07b66. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES5079200294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ac7a39048e26de01a5e111bd4a9f1257904941cc4632e1ad5f413d1571ed5f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES5079200298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03fda7b6367d8532e5fb8ba19ad225634d2a197ffa78a5abb0f46e93dcd1c44. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES5079200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08cada30f23c6170294efeeaa173b70f853dec32bfc6e0c50e1dd574fe5fef0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES5079200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d49546c618d0470f4ced734886ba4231aade96a55aeae4e622ad403ac910ae5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ES5079200295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cf805efa29abbd07996d20b9a6d62182a79fd6050aa9c22e6c80a657fb950d. 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/ES5022100346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc80fa08ac30a2dcda45eb066103963cd23001aa2bc7e4e636229a0f38815fc. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES5700300197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ef5a7cf0ce2fd73de97c503bcc50ec9fcca2c7811fba7cf416b1a3374aef4a. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/ES5700300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bf41243aeae36f2df16fa0166d4fd575d583f3eaff7c3dcddc7167ed2838c2. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:56:02Z), 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/ES5700300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b98a24e7052c913fa790058390912a8c215e5c08845733d2944cde639915e78. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/ES5700300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e2ea5325b49d78793403cb6ffa58b6164a4ce64970342e153266d0bad935b2. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:39:12Z), 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/ES5700300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e0a0d79a8a2ace3dcb92ec9916d52512b03314441a9cc7c7d9139f45af9896. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:43:21Z), 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/DEVU51894739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3d13799fcd21ab24ec42ec26acf147ae27bba475159dfdb5aed7e43ec75909. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:13:18Z), 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/DEVU51894746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9013c118207d6c1cd7dcc199cc7c0640428012f024bd6d0cea6951ad130988. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:36:35Z), 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/DEVU51894747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06ddc01bc752fc30aaa78c48192dae644ac4afe728e9632b9acc31e8523d823. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ES5119902191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb613ebfde27fd33852667c039aecfd67d2f1d503cf4c5b2ccc61ab2af84fa91. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/ES5079200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6ade2d442b7ffd54449743587d7bb09eb2229cd99abbc580969c314ea07b66. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:41:07Z), 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/ES5079200294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca66275dc169effe31263e294a0e75cb57bd576f5ec88d5ffb5882665ff1fa1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES7730902370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150fd344b04946c594c77e824f47a242cb3b206fa61790d369125bc1ddc3cb06. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:17:21Z), 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/ES5022000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52681538b3faca87380e5862856ed61a0ec71ab7dca727f043d6c7d2f8687ab. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T22:01:45Z), 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/ES5022000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6febdcaa42ceabe8d2ceaea995143e26f61d69f9a7405e9f143380c3a74504d. 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/BXYSM2000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780f4366214ce2ad3327005dad8880b47e3ba6a1f1af18a7cf42f9e2f830a104. 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/MXF011700222.
Requiem Por Evita - ¡Oh Que Gran Circo! - Remasterizado 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557ce3e3d30cf4139a3f9c2d45dacafca1d1d289cbeca606132c7a78f38ea3e5. 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/ES5022401119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2433f60b246d2d6da73c92db606a305b507024335539c60a9fc9ae4ab38e17c4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES5022401127.
La Plata Viene (Y Se Va) - Remasterizado 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da1bd6bd9c6fd374a5f57c1f86f19e9e17824f20b724a7df5f045809cca2b25. 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/ES5022401133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719fd548a4a69498b27e9eb499f35101f362180eef6e657a6dc36309d5f5648. 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/ES5022401134.