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 0xe08ffa55a611dc5889d70db30222b4326ded03ffcc14da4f6a93688e9d2a06e0. 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/ad34b21b-9eb7-4999-bca9-465594ae336a.json and https://artists.proofprofile.net/proofs/artist/ad34b21b-9eb7-4999-bca9-465594ae336a.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 0xa696ae089277fd4bbcfbd98a94241948cd341ab96ce8c93d5a5e1e3dfe5351ff. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR4E69100220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a7c108d6728b8608cb3c830d73a643bf3829905109cca996ee1e627973a46e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR4E69100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5524fb361d25d6153406155165fe50fd099762ae84b08d7b76311dafb6ebde7. 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/FR4E69200350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fe704d104d549e1d3907f96c7143b1d4baa3f845eab5610ff478aed0f447b4. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:05:43Z), 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/FR4E69100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacdfb826eafbe23480ddd426ee1fed1150d853553624275555406a8fe65a612. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR4E69100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49e83a2c8bba1b86d4395dd18bf68f4b702c28c5528b83dff79b8aef8b61e12. 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/FR4E69100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7473bbb56542fc033248a2393bfa66d18433925f9c64e885c5a405e3dd04801. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USL4Q2088044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7a1f696cae44614c52bd829afff258d963948456e993c3c7e590b6ff988eba. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:03:44Z), 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/USL4Q2088274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8203b085ec6c78f371722deedd330f0cc3f5ab25aed6677b8e571a8798393a36. 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/USL4Q2088275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51debbfbdb968bdcdf89a8ea613ea1f2a1757037eaf2bfdfd0769ff79623da2. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USL4Q2088278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55764c1ed8b82e8015e7d2c15b45c57a19ae90684185bb9348906e71353281c5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USL4Q2088280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1f94d6fbfcd2d1d6e0aeb8333e1ca999c078f0d4fa7bdc3945b54982180f48. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CH6542476075.
Sangre en Mi Tierra - Muerte Total (Jujuy, Argentina, 2004) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890d07343b8eb2a4699e6368880873eda5f8a4e66ee95b5c3e8abac3a27677fd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM6P41907054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f26c88a9070c7e462d36f788211cc0fabbda5086c4ed95f171ca6508aee873. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM6P41907058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e2e6f9ff77308c3d19c1e35563b57d9c00340fdaf9d1da07a51eeaa9572001. 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/FR4E62101260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce1492f9fb76a98d9449e46d4cb0b4e5a086b61f7adfcb129c9b67f8a98262d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:06:02Z), 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/FR4E62101280.
Ola De Violencia (Remastered version 2024)
Sangrienta Muerte - Remastered Version 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c282db5a34e642c3b49a54f9967bc29f4ee4c19c787bab1ae4a5ac53ae57e6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR4E62300220.