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 0xdb626ff23e7add1e1c97380e4616d1f95ddf4b437107f36e637acfbff4a5c9a5. 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/1aa9ed29-65b2-452a-92a5-3e1e05120704.json and https://artists.proofprofile.net/proofs/artist/1aa9ed29-65b2-452a-92a5-3e1e05120704.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 0x0109167b63d278b80d03efc1fbbf44270b8f5a89654ae971e967b6ff4e269ee0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEBL60321554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7967e311dd230952bd6362767e6d555796960acffd7ed0cd09df8eacfb8cfb6. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:26:16Z), 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/DEBL60321556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b9c70abd0b7967c179211d830e6d33ea1bdb27b8cf8b809297cc89f76c42ca. 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/DEBL60321558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c13d54c551d0a4003b0bcb8a4580a262668e3d2f711eeb5f37d3e40b3e2de1b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEBL60323199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa7a45357ac11d55c8568d2f225dc2ee053f1573246b3207c83c72e72ece3df. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEBL60323200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8c1d056cd943c7738ec145565a673484237d101f2c7a1eed369f4861c7fc74. 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/DEBL60221683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99585cdf3fac2de92b21f92713d26e9dbae477cc822da757ba4c0f4a1839863. 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/DEBL60221685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc737a15cdf79cf3972c23f0ec7efb5f2d51518662765b123e544ed2f8d1f52e1. 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/DEBL60221686.
Bnatsenet Wegiha Meriyet (Eritrean Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2462f29c4b2cb7c527f49f4135e4144774ae2ae0895f398f3bbf537259ea4ed7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEBL60222385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58356aa9aed996eeced350c6b8fbdec05b15929ba9febdae525a9b39a17de3f. 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/DEBL60222386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad35a53ec4d6a9bb8282ae3806df54179433ba4c989e072a5c72698734b4452. 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/DEBL60222389.