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 0x19c3083c1f277a4634fad406e584808b8679b388d9dc0b2b6fef7a87efd7f98a. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0430732b-0ce9-4bca-8991-668c904cda12.json and https://artists.proofprofile.net/proofs/artist/0430732b-0ce9-4bca-8991-668c904cda12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
(lofi-ambient) Argentina [Rock Nacional 90/00s vol#3]
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 0xf97447d8347ff9eae8a92d5e1b262b5290efea4910c7eb5e07cca331a728040a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES62166602.
(lofi-chill) Argentina [Rock Nacional 80/90s] - vol#2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9cf3dc7ee7fd5b178ffec0fa892e542e8f3522e2ae728dfa0543a59704a179. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES62166426.
(lofi-chill) Argentina [Rock Nacional vol#4]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd578348c30ca012a7b3b87820bde3fa57e0f326b945299adedb5633de5be93. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES62119311.
(lofi-chill) Argentina [Rock Nacional 80/90s] - vol#1
(lofi-chill) Argentina [Rock Nacional vol#5]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b62c5a6910b616d0c53085dcf1791e0916d53ab7bfeb43d92f7aa6d7d44401d. 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/QZES72120111.
Beats para hacer la tarea (lofi anime 80/90s)
Andrelofi - Beats para rendirse en febrero (Calamaro lofi)
(lofi-chill) Argentina [Rock Nacional 00s] [vol#6]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f870f4ae870d7f0c448c1c940b30150b9f98e27c1884fc6435774cfeeaf0e1. 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/QZTB42289476.