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 0xb6fc6f6414ad5f842301c01f9014b1ad2ca44f18c78a2a389eaa3ca09bdfb936. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4bcb320-cedc-4eba-a271-fd6f5e21ae04.json and https://artists.proofprofile.net/proofs/artist/c4bcb320-cedc-4eba-a271-fd6f5e21ae04.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 0x3c658d28adf4cdc0e59c307fe030cd1ae71b3fc5cff60ce7dafe5f142305d05a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USA4N2470007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7681329b4a6ec1b6971959a2c966c00fbe9b427b694e5f3b94b33ee14fb8461. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:47:15Z), 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/USA4N2470008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dc817b9ae578c999fed6059d47734ba8615250f23c5924ba72d7dfaed95c6c. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USA4N2470011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232c8a4e16564aa207385a73d32c879c44bc4bb78eae13c0f67cd62d2ac54159. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA4N2570008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c658d28adf4cdc0e59c307fe030cd1ae71b3fc5cff60ce7dafe5f142305d05a. 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/USA4N2470007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dbed66804b4d04506a3180caee69b269e6914eb15b1620e4c10fcba33133e6. 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/USA4N2570012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7681329b4a6ec1b6971959a2c966c00fbe9b427b694e5f3b94b33ee14fb8461. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:39:33Z), 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/USA4N2470008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194f490bcef85573703cb4c94002ec752c9d7a517fed480d849c626968b8efc0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USA4N2570009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb15c2644936471b5fa2b90a6365c255c83f06fc0a0235af31f8c2cb175dacac. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USA4N2570011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bf65bd429406284821f36db57c1f77a541d4937d3eab5c4dc6c182166b273d. 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/USA4N2300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af59483de4dab0d9e381df6deaa3347d9f9a37297011c2a654db1c15d75ecfb. 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/USA4N2470004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad11c52334cdfeef5b27172e994e729fe3b646c48583ac4830fbf3741b1f7725. 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/USA4N2470001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c42cf5419ece34458aaa19b9387548f297df4a638674b344363f164870eb7ff. 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/USA4N2470002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3216cacd9de038964ce7027f170e0c29571ba7d56b861d142ccb57097c5be4. 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/USA4N2470003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c948726ca837b9deb414fbe8c1ebbbfd34549044132366a456ac05bd7b51cd. 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/USA4N2470005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba94670bd3a5879d45091d95fb7316afa3eff620f00a03a1f71843c3d5ae6bf. 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/USA4N2470006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c42cf5419ece34458aaa19b9387548f297df4a638674b344363f164870eb7ff. 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/USA4N2470002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bc8601fb14a02130e87924a84e24b89899a47fdc48a475993e4ea7428065ca. 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/USA4N2200236.
Popurrí (Vienen Con Alegría, Juntos Como Hermanos, Alabaré) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe110848a8fc83e3a4ba5f589e53e9fb0cfc45acc90e0aae04fb0a1fd40c1d24d. 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/USA4N2370029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5becb4fd614380c3b0e694d5c9d9598764963caf578d091d59ee5cfdcbc492ea. 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/USA4N2370023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077f35ad8d0c7062a14ec32a631e74aad1822670781fc4085bc1dd5afc29ba52. 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/USA4N2370039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad11c52334cdfeef5b27172e994e729fe3b646c48583ac4830fbf3741b1f7725. 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/USA4N2470001.