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 0x15f3a442d425515a92d1a5c06373db3c904f524dc11fdc759d78ffbc639b9827. 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/4334382a-d58d-46dd-b974-e003884322c4.json and https://artists.proofprofile.net/proofs/artist/4334382a-d58d-46dd-b974-e003884322c4.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 0xbcf4416a39c75457aebd4f18d23a03b2912a99486ac1ae2998e7dfa182df87d9. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:08:02Z), 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/ARF039902147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750c84de6a12f2c840d7b6cc81e5e2a3a607d270cc88f2a18247e923899f16c0. 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/ARFSB0701564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73ce24343e276a94d85551405d18e1541d98cfbeea6a39755952937b668bb87. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ARG991010502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1890d4c50161476408971a0c8fa73dc25450e8ec8f307ea6ebfb7ff4446d867b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/ARG991010518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf4416a39c75457aebd4f18d23a03b2912a99486ac1ae2998e7dfa182df87d9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:47:39Z), 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/ARF039902147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97681546abe03547d98850d3f6c6c13ecf99e470b0960385188297cf7af44ae3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARF100900698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6484bfc538c483cd93f9e73469352394d04dca9a5a98d4d980baa0d7c77882. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ARF030500200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33a98f8232aab91e5a6f4e0814dfbcae9d234a7d8676813f1fa0005966bbd8d. 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/ARF030400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5654e6a3034b7b2521e454efbdaf9a6f630cf2735e4fa2c4425d372ce68795cf. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ARF030400255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebf7facabf4f6f5ccbdcf9bbcd739c9d5d95e4db60a0edcd9084f0f230db41b. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/ARFSB0600560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1a5809ddd4d8675044b0f3b72242221a967305c9f38a6fc7da0efa7c75ad59. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ARF039821086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83447650b1b686705d29a8de94a912272741a2654cd4282e6e79440babc3d6d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARFSB0600575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89d7c4f1a42e815d570aab3b3c78e37be9a6ed031e205d7f4ac311422d4d28a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:58:55Z), 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/ARF039902146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bf401986870c249353cb72f46e190e73c4b8d0a6dadd735112fa72f4e1579a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:53:15Z), 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/ARF039600780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fadd3b8cfdb5eec25ee35c81f0334a4bf628ac4cb5975dc19edcb521396a1b. 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/ARF039501381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a5dde040766eab6d8dd1eab276212e8831c024bc0e03308b03014d8678bcbc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ARF030500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742a1e2725d0b81ba854649ebb8cd0e7fc1a4f5b558138e483f201f16e84c46e. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/ARF039902154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0987aba755d606dd05cc9a0703ef24b23c56ee2d2693e02c60a6dd2b11ea0527. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARFSB0600580.
Destreza y Coraje / Llévame Contigo / Campo Santiagueño / Muero por Ti / Pistas Tradicionales / Al Pago Puesto de Díaz / Casilda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc421a52ad27f8ef0cfbbc9cd9bbb54535a39b37b9b439c75658309a948c2f25c. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/ARF101000558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c970cf7908d918e78642783c6c9cdb91e52495d84859021a3b77b4a80036f6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:25:13Z), 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/ARF101400512.