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 0x5436bdf6717203d2ab2687cf269b5f1b0adef71306145a5cd1e8ccbfe41d0c50. 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/625ef38b-ff28-46f4-bd97-fd31597b58bf.json and https://artists.proofprofile.net/proofs/artist/625ef38b-ff28-46f4-bd97-fd31597b58bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Estoy De Fiesta (Remix) [feat. Shako El Sh]
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 0xa9553b7a5728db53669e73ad862c8c3574a4051404541bb2d7ead65209e15690. 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/TCACC1471446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee39b8de0f82b2474bffff994715059b560005dbc108f851c04c6a10e4844f5. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/TCACD1583441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee39b8de0f82b2474bffff994715059b560005dbc108f851c04c6a10e4844f5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCACD1583441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e13bb23725adb140eb69828fad9bbaa9d388d27b3a816332a26a5efcbefe95. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCACP1648131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b4b4532b42c3197643ea31665fe011128e6601c0dfbd2144e2ceb9d697df64. 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/TCACR1684917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6bfc2ec06aa7f12c5b07ba9e84284b92e7b34934b6c974d21dad45d52ea994. 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/TCACY1782350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6bfc2ec06aa7f12c5b07ba9e84284b92e7b34934b6c974d21dad45d52ea994. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCACY1782350.
Amor Y Complicacion (feat. Japiaguar & Blindaje 10)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8d5975bf481ff1074065caa0e96cb0b2b2f4d7c81a920a13d8724679e75cab. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/TCADF1782858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9ac1d89a93b42db4bc73c84320e4c89ec92a123799dba3792135b2f595ba3e. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCADH1724713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d7895c02f976d7c5b04a46ab12034dc86ea12ab7071e779260b2d7db48791f. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/TCADH1724716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de10bad94a38c9d0864bec838d443a7be8b578ffe643febe9a4dbca956477c3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TCADH1724780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd263d67824cc6fa86542fd13b692157dbeb50afbf5e07c6df260177702a891. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAFP2109319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b6a17fd6843afeb138df4615a208f8f90ba1e52fe7e59dad5105d6c25ac687. 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/TCAFX2189036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6af73fb04e16089fbf3b32c5643f9fcd719dc91c00e2f9bace954d3363a686. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/TCAIG2494579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6af73fb04e16089fbf3b32c5643f9fcd719dc91c00e2f9bace954d3363a686. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAIG2494579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627e8805fcfd981204ce4ade0f95e949509f5bdb66d0160a786b2e1293225286. 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/USHM81743677.