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 0xef9a9ecc7b8c06bbe045fa576caab4f6b5ebe00e85b5dabae47951deea14fb55. 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/05ae819a-96ef-4af4-adf1-734967609f4e.json and https://artists.proofprofile.net/proofs/artist/05ae819a-96ef-4af4-adf1-734967609f4e.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 0xe7b1c753585a15e306c5f5640ae9cd3dd80d1812cf9b1d67cb5744eb11735fb6. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/MXB712000115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8a5d5f41d9154f121f220ec16104ef9c19ad0b2e0aee7b55562cbf2ba02487. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXB712000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae69a8d8b98e1c342e582b9a14f961d56a477c4637117d9e6026fc458679cb1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXB712000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fb45a2addfed03b55815b5cfde6822af247862c7a5a18974dcc45ffc986f2a. 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/MXB712000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062ec5e121a6a6ab447e8a0141451c2f96642bb9d9cf9ba57f1a37b7a0867780. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/MXB712000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8b2ea0b873e1a3690e01e4e773dea530dd8f4b2c5907c7954048e8b27920a6. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:44Z), 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/MXH152000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a2266301bb4c47c2d1c089223b24912cfe563ebdf49db71e4497b2794c2183. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/MXH152100412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0ddc095bec0de1c5214ad10285838cc4331e57131a70b4738a99decb9ef6a6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXH152300413.
En Vivo Desde Las Banqueteras Con Los Reyes del Camino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a85126de43b93ad1053199665e2c2593f07eb6c1952004fb3717a81dd84775. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MXH152300580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0577986f4a6818a0229ee2b5fb1ca127dc10ef14809c5aaf267469e9197b03e4. 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/MXH152400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604ac7acdd8f00060b57c9d0c7923f6757d98f887066b1df50df600f81224824. 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/MXH152300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1083d7523a00eec2e5c2ce6ecca846a0478ab6221332301c26be91288dbeca50. 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/MXH152200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7258467b3d693ec366fdf18f031488a462b7809157ad803d40fdbf93b852da67. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 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/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 957120 (2026-07-08T03:22:41Z), 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 957026 (2026-07-07T11:02:43Z), 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 0x6df542fac18245e2c814be069a227be7722c66b924c448dd50b75a255ee6ea28. 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/MXH152400325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e9f2737d4a8fc3fe08649d0dc2e42d1a73293703f6fd7e653f63b594e62e4. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/MXH152300581.
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 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.