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 0xb818b8a056adcfbed8a761aac76dfdafb58972a236f8e1356734268d07bcdc1a. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed91184d-d3b7-4acc-9942-c81aa54a9050.json and https://artists.proofprofile.net/proofs/artist/ed91184d-d3b7-4acc-9942-c81aa54a9050.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 0x92b9d25a9b0569d0003f9457e055e9a7eddd07017c12690131a7db0b6b754c78. 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/QZNWU2167429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65696af6573ccefb5fdc54faa3cb31b4fad012163abb15562f014c4e04b46a1a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWU2167433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c40db296a860013df43c21d047f04cdde02d4b37b223e5977ebdc5b0692f20. 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/QZNWU2167436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5c61496b564db404fcef5258ea425ec30668feddc4963a7ff6d9af7a3d1b02. 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/QZPLS2154580.
Кащей вмер, а я ще ні (Live at Coschey Bar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a712f1e6515bb22fba0775046db95300be640a99e5853dbfdfb34b938f9a8f. 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/QZRP52168922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5079dfe0eee5af440b85515bbeccaa4e41debaaa9e6738e6e4fea70ef2e1ee99. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:40:20Z), 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/QZRP52168923.
Что Нам Делать В Магазинах? - Live at Coschey Bar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e84bc5e40f2635327477c97bf88896f254c01d65f5034dc8f3deabfcc4eafaa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZRP52168924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d7a627dce7dfcca277ccf3303b904f26b46092eb489571e970dc21ad6eae79. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:59:18Z), 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/QZRP52168925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180210437e37b265e249e12c4c73fc5d9728af9179f026b80593505989209c38. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:50:29Z), 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/QZRP52168926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f0650b9b7227a65bc1946eadd33c8e85997a7d6ee15a424f6385b9cf63ac73. 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/QZRP52168927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1715414e6cd64d11810f4b7121126d3dcde64c288e0563e3b493fa0e5766b44. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZHN42290694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eeb7470e97eb1931d9534d757cf538cec8a189d3e605682085c21fae3830676. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZHN42290696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2addb5864bbafca30723f239c4fa1533d08791f7ea9735a3c2615002a80410. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:53:08Z), 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/QZHN42290697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c06ee42e96b156c0800fe22dd9a25a4ea2b0ba6e62186318419e822e8378cb1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHN42290698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac39694b6b6ced2b82b5c86171eddc6fc9da3f1d3d34f24c45abe872a98b152e. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZHN42290699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695b2616c30866f590ca7c8bd6f59817952ecd866a104a72a2fbfe0cb7443ab5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZHN42290701.