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 0x0ecc2ae73594eac3a29d34cd5ed4b3cab339dafdc837b86512929d65e5751adf. 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/4b5724ba-8fdb-407c-bb6e-c4446c4cf3a6.json and https://artists.proofprofile.net/proofs/artist/4b5724ba-8fdb-407c-bb6e-c4446c4cf3a6.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 0x2442820d9f011f2e3f12f6ed416c37059e6140a51034995fc31d7efd691947a8. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/GBLLT2038102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc1b2a660e49ef529aa7cb6d372de0f98a0366642378823669333e033eff8c1. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/GBLLT2038103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b48f4cc6a02c089d9abd3cb3538f0482c1084467ad711512224a52a1f08ee7. 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/GBLLT2038111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2262b0f8aa4585a14fb82b1df895d3a3d1a4ae161da210c5971336e33ad142a2. 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/GBLLT2038112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664b5bdc355e4de1a33554ac163f213d4c373d39e8500154c05574fc62191a34. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:19:50Z), 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/GBLLT2038113.
Pójdźmy wszyscy do stajenki - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd899ea979047173b1e97bd8740dfbef4b637ce303293a72454143ecd78ff6ab. 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/GBLLT2038115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98d2f95ef7b48a8451f7b4aab082cabd2435e2ecf390b0846a7b8f2ccf1c4d4. 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/GBLLT2038117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa448cb7b0b11848c28d3fef1edb1606d809cce7e5b89819d4a428e4e1fc2ace6. 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/GBLLT2038120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f869121c262b8acb343c83bd22ea370fb9abf9b515105deed9ff1283f2746a4. 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/GBLLT2038121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550e4be213fd25a18718911334e687a7a1ec71665acff65a5de17b8fa685dbee. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBLLT2038902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb133ce01685f00ad78f5fb0fcad14f2d7783e9e8abf56cd0dcc0a7f7308320ff. 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/GBLLT2038903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b6e46035a9206a4e3dd405a8425231272547bd1b55906d1b0d79b033acd981. 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/GBLLT2038904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b54755f3057bff0adf77bfede3a7851c92b224503cfa67b479df94245e07179. 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/GBLLT2038905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede91036dd4d2357518476004cb35ceee4c972df342630777e1925605e82e071. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBLLT2038906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b609162b608104931c4de5bcd6b59a18ada6421f695ef30c3e2594f6a39eea1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBLLT2038907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3981e6b4cd9effdc1c179b101513e8267d3f960d17bc81b3f7b9df4bdbaf9a96. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/GBLLT2038908.
Zaprawdę wierzcie mi / Od zera do bohatera
Nigdy nie ulegnę (Mustang z dzikiej doliny)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5167a936f4aea380a9cfe1e12469ed2f7017074f0cbf7810d3a3b600963dd3a. 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/SEYOK2159592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29df33337bc75632852f4c0aeba4e9ad525f26bbbc48dbe489fdd92be09e4e2. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/SEYOK2208341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5756faab5007e4917c59b5c37115a306e0cf2f9dd2fe9bca40ac411d74f334. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEYOK2213190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4bc9a43089eba0980a0ae64053ac84c5b43561e68dceedfb0d3e65439f8322. 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/SEYOK2429162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5699fe4f5947c6d126f7c8a73be0c930570384fccac970e55c7c04275742efd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEYOK2429148.
Virginia Company / Jak uparty bębna dźwięk