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 0xe914afb40a6deaca928320451336d3208139a7d098e2c5b7802a8c0696e60d2e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ceb9be54-a42c-4b43-89e1-2253d12645a3.json and https://artists.proofprofile.net/proofs/artist/ceb9be54-a42c-4b43-89e1-2253d12645a3.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 0xc3bd7e8e5fd488648803fc9c35a2e98d41bff29673c81b90671ead81bde7c83f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZFZ32384433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd66cfb476c0270b3a674616bad80c3a0e93c6f8c31cce6fbcb331920e78105c. 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/QZK6M2257313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03da565f73c9c8d3e11ab61651a10c4928d92e8d0e40febd95e7ddca2ace88f. 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/QZK6M2255605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a509b9008350ce715fee401366adb21264f5b0e711c1324a0d338157a97cb8. 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/QZFZ32355583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0a9b1f76a1d26b6ff2d90721598905b55bdabb225f82a79f8920f5191d13f5. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:42:22Z), 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/QZK6M2218874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f58fb5fcdaa4843d703f3517d9c660acdb3c5d9d82ef62f7fd6a5fcb4ac45c8. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:42:57Z), 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/QZK6M2218622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d8cca0ab841779f79228b3a3d7ff4c6eee8b7ce35b082424aeb6e97731fcb9. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZK6M2257309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3a8f0c716c48a67391a11dcff723d89951363b599d1f677d24c7675769796e. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZK6M2255531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc053a3223d138a43b6dcd0e84a13a09c2687e4aa201ff4a8446ac6925ee5d468. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZK6M2257310.
To normalne, że coś nie gra (Special Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe91ee6bb9840e08689c4e022935011303fc97d8fc5cfe23f0cea24bcc9a27e5. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZFZ32359028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf522de7e0d5f0752f08f4b60981e0107ec75167ee9e0a4acc7b060e47b00eb83. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZDA62358488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf690d6be92152bbf5bca2ab2aa4f8db235814b27a2a2b2cc29b966ad14ad1249. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZHN42326196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5151994ef82e40ec91e7565ba963bfdff95ea657044bc309fd7add54bc90fb74. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN92328926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07feaa847fa0553d5d59e287bf3f6aa457cf7fcce082397af902c4e0b9ba9baa. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:43:15Z), 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/QZHN92331112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb18875e8d098160f80e6a19f9b7fd221dd30ec7368e553b11e71460c0cf8c9. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZNWR2363867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231efe2b8aa6856ed85067317deea1cef8fd826144cc1cbc5c32a7dd7173925e. 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/QZNWR2363881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdcefe5b7f81cb6003ec02152ad00d1b5493cd04483271ef81c70a68facf8b4. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:13:47Z), 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/QZNWR2363883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392227eb7417f9a0d54c160250a4f5fc2cd96f588957a3a98398189d5d9d38b2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:14:44Z), 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/QZNWR2368526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4994c2090f3a52fd426c14bf813536bba226906db875cc366f28506245170fe9. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:36:45Z), 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/QZRP52393213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b325cedfa001fee83619757d13f51e223f0d94e24080d26c4347bef98236c3b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTB82332643.
K.M.S - Czasem coś ciężko przeżyć (Skyper Remix)
K.M.S - Czasem coś ciężko przeżyć - Skyper Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f8e82111d14710ae2036b22c5e88d63bae1f398abd454d1303012949815a54. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZTAY2482239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b0dd9819bbd1dc49d347672da93eb2c13d80c2b5ec0090bf7000051de3b412. 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/QZZ7S2505437.