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 0xb6a422a42d2260528589dae03ce36b0640a2660e5eb071d58b66ee755d3bf9b3. 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/dbc39ddb-8852-49a0-a981-f61e4f68f592.json and https://artists.proofprofile.net/proofs/artist/dbc39ddb-8852-49a0-a981-f61e4f68f592.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 0x5412f2f7c9419e219b82afa33ed7beb41978920d695c3bebedd13f50afb84ee8. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:47:18Z), 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/CZA163368400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f227c8c9ae38da0420cec04722bac2d76d97e03f91c00a85b6d6392ad54489. 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/CZA163377094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1562b84e3559e3ab424653f9c7821d3dd716fbb92c82161ac2b841fa26672a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:15:27Z), 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/CZA163377095.
Holky z naší školky (Electro house Remix)
Statistika nuda je (Electro house Remix)
S čerty nejsou žerty (Electro House Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efc83df29b9089c9851c2e80be1829f82ce30880c5500a1e5035837fcce2226. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:58:52Z), 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/CZA163382100.
Všichni jsou už v Mexiku (Electro House Remix)
Rivers Flow in You - Electro House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fbea142d4e630155fdb468e276cdd551f5ca7c48461010f44fa2842f98a5c1. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:06:06Z), 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/CZA163384914.
Requiem for a Dream - Electro House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444f6a227b26236fe676ef2152a479b15e5e649a68cd0d0445eaddf2dc62865d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:53:02Z), 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/CZA163384916.
Tancuj tancuj vykrúcaj (Electro House Remix)
Pirates of Caribbean (He's Pirate) [Big Room House Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35764362306d9e5859eafcf9e738f91a94c80dd09d4d77d46bef704c5a0f225. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:01:15Z), 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/CZA163384901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612ecf2db1806717bd8a7481a6fda5e7b9142cb8e013c506c81b072d29595cde. 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/CZA163388784.
Branky Body Vteřiny (Electro House Remix)
Ať Je Hudba Tvůj Lék (Electro House Remix)
Tři Oříšky Pro Popelku (Bál) [Electro House Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeba74265e3788cc7bfe8c0240d5e3a191b0abd78c87920f0f5e44de4500d6b. 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/CZA162154637.
Pohádky Z Mechu A Kapradí (Electro House Remix)
Princezna Ze Mlejna (Electro House Remix)
Prší Prší, Jen Se Leje (Electro House Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c07c63e3921bfc9642ccbf8d0903f84d5c73241a3454a9b10b70d888865296. 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/CZA162251788.
Narozeninová Píseň (Electro House Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bf541dc132778d0627d7f57e018b6ac5e1e11977aedb2bc068afe3e94cdd1c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:45:07Z), 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/CZA162252957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7e5335d3dbdaf3030b187d8ebf0fd9221002876cf0efa2ac79c0c9c2b4dc26. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CZA162252956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2cd50ee2819e8d36ea777f1ca1d715730aa2298ad042345d0452053fb8f216. 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/CZA162253098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8803f99bb9db0dea43e58e05572747397e9d7b441464fb07e09f4cb87956776d. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/CZA162253284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47144278b7de72b4e0a8cfa8d60b79da96b4a5399b62bb631557dccde9df0e73. 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/CZA162351367.