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 0xf9fa410dbfad79248b8ac64b049999a6c99196c2a96acf175ab80c47e1498e9d. 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/4e82abf9-bf02-471c-af82-78ac9eef7c02.json and https://artists.proofprofile.net/proofs/artist/4e82abf9-bf02-471c-af82-78ac9eef7c02.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 0x3c03c9b58e6b1265e1f71840bb7a4d4a886508e555b5b7893ea18a282457ccaf. 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/PLA248125101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2844eb576dbf58f7fc891a1164dfa426bc1fe50c3b3e3099f11bf98e6a9cb7. 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/PLA248125095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3e3e090d8d696d7403e69c297e9becb00b4cbd8b673c191fdbf306bdd738cf. 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/PLA248125100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce6e5cb917c5c406bf41ffc5b1b40c11fd4cf7e86138f72dd717aeb665bea7e. 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/PLA550100321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb181000d74a0956da6bf46e18c7aa2ff1475c75d6af317f814eb8c0fd9742ed3. 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/PLA550100323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd0a1e7314f7e952471339a3dc1dc51644c73ce78765ec7432a9bfc60006884. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/PLA550300284.
Za szybą / Całkiem spokojnie wypiję trzecią kawę
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7f7586bb17ee97eb23456755169f7064cc1bf4984c179bc58a24632f09b2b8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/PLA550300287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f95c25c9fd774ff06e5499a589792ef534df13525bdeba98a805fe65921b30b. 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/PLA550300289.
Wyrzeźbiłam Twoją twarz w powietrzu (Live)
Dookoła Wojtka II - Jeszcze w zielone gramy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100db8d47515bf6f5234bbbce6123711ee4b4ff7ea3dc967553e765643cf8f25. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLA391490404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec2d497109e6fb9300a90325a0c7ec363d46a5328ac1a3e924d5b3d6ecafcbc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLA391490411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42a418611551df067791a1a856a27edbc0f0e0408570324ea49b443848b602e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLA391490311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172cafe7d08c93451cba912c29291d1ac6244b45e8694d34450d3bc494654f0b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLA391488516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100db8d47515bf6f5234bbbce6123711ee4b4ff7ea3dc967553e765643cf8f25. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLA391490404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec2d497109e6fb9300a90325a0c7ec363d46a5328ac1a3e924d5b3d6ecafcbc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLA391490411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42a418611551df067791a1a856a27edbc0f0e0408570324ea49b443848b602e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/PLA391490311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299089ed20ae9fe49aceb85bb3bd5a7b84e6b872f98a6c42148cba38d8c6e64. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLD111500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8f32d1a07f149948b9349056d6506d0344cebb62284c7f1acb86226d0cf8a8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PLI369293760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c56dea291a18b9cc4a0476a060d71759ffc3f65f86386255c74159dd64b2cf0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLA391715008.