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 0x3b9cada3b6d041b1b8f3aea2d992c7c9073fbe2e58867d6509b69bf3e380a5f4. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b164894d-d8eb-4ae3-9e64-12f9aef91c5a.json and https://artists.proofprofile.net/proofs/artist/b164894d-d8eb-4ae3-9e64-12f9aef91c5a.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 0xd1a8d0e16ca343381f78d88085957fc1e71606ea0363351ba1af77ecfb920c0e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRIDO2211442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498075cd9d12488bb2166b8ecf30a6d8b4400fe88f9ab74a2a4c397de05ef6ea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US7VG1853795.
Alegria por un Zumo de Naranja Con Panela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ff75d1c044b0d6d55924ad8a80b409c83667eb31c4667db3ca65066bf19c6c. 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/GBHLW1501660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e839b7349c259864c4b6e73c35d306c1d1bb5caabf40013f6aeb639a528613. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBHLW1501661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557080a176c1bd9692565b4a538fe369f59622b8063f002ea4f8b7e602f8b259. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBLFP2344882.
Los Demonios De Aguachica / Listo Medellin Cabina 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf0eabcdb676b5c7ec43b24ecb6cf44fa3e61d3c9ce4490fa5ec3bb00b9bab8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCGJ2074884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34a54aedd35a8cc0865d6a381b49ff5b15b5f61c363c2dea3ac0173e231751f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZGLS1923790.
Descarga Pintoresca y Cosas Cheveres (Alternate Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6629a8ed89c3558bed018cf3fde2b944c89f0eb49cbff233344ee954aabe0be4. 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/QZ5AB1633135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9be13de1e58480dcfd8d3fc1d5838fb1f7b0192b65dbdd30e1a07f2b84f5460. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ5AB1633142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f233c04da1ce496975515e7625b7ae9fbfb36a993f9a33be3b8077c7d8438cb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZGLM2401754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8058137a7c533dfba60b5389eb49cc94efd5c423e3a17141eaf84dd5ec1f7d8b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZWV32438853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaff95fb364539b2bf83ef3d8f9526e6be0e23cbe6e2a565bfae2e251ba16db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZWV32438861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12089ce734b68b06f2ca3fe644ce7af0b85f075dfd7e52fd04a9cd96a455645b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:36:46Z), 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/CHA832196203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94962532e81fa6a0bca8934937ef238464578115962f7ccfad044d0d08db9dd5. 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/CHA832196204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc317a03975cc0c883aa8400e7907d923d61ca8ba3cbce23e7724c31b91f571. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CHA832196207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc989c8c5cac5a119bb2878d95f3f4fdb3d6aca14dde995b381c0a7fc3827558. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CHA832196209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec22415c9f3a97fa8248841d7672bc3e8b0234f58f67628d0079949cae7ba726. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHA832196211.
Colombian Soul Compiled by Bagar AKA Tricky D
Galletas Calientes Present: Demencia Tropical: Alien Sounds from the Tropics