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 0xd4adb213601e6d14c7b6545e832543391c265f452e7679d03d925ff81a1ba9c7. 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/06e8cd78-8a82-4556-86e2-43c0a214c2a6.json and https://artists.proofprofile.net/proofs/artist/06e8cd78-8a82-4556-86e2-43c0a214c2a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
En Vivo Desde Las Banqueteras Con Los Reyes del Camino
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 0xc6c027708d8f637706551fb7ccbefe17bb7e432629fc3053e786ae3a80a4da49. 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/MXH152300573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0577986f4a6818a0229ee2b5fb1ca127dc10ef14809c5aaf267469e9197b03e4. 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/MXH152400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604ac7acdd8f00060b57c9d0c7923f6757d98f887066b1df50df600f81224824. 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/MXH152300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7258467b3d693ec366fdf18f031488a462b7809157ad803d40fdbf93b852da67. 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/MXH152300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af6c152b567dd462f9083316679624273d02954daf2cca45d84f40a9a4017bd. 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/MXH152300352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f4a24c6a8bbcae919ec1043e59bb85438611c4e81601828accef28f7ddaba7. 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/MXH152300415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bd4d3c7a20075b89fde4689fe431d437ba692d2596c7a9103985169c41ebbe. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/MXH152300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5084da6dbdfd1cea11af3b501fcb81c77a0f47da9f7b15a093ff7457063efed3. 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/MXH152400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84b517e8d71c4e6e32a6ebf84f927da6d907106f411c74fc14c945dcd8edf28. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/MXH152400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4491fd95cfc9f113cdcd454f457fdde08d8c17ecf02f414dac0509256e88c9d4. 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/MXH152400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e1f1a614c637088805e73dfdd184e4a0d33d6e5ee9808a532078ff648044c7. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/MXH152400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8b84170c6565a3bf0dbcacaaf3511c922b008a1d876f19f622fc40c8fe1d7c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/MXH152400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df542fac18245e2c814be069a227be7722c66b924c448dd50b75a255ee6ea28. 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/MXH152400325.