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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb730e558ae1db6557d6318aff0c51bd957d5e5a2e45a65ad99a5666097251ee. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea25c738-507a-42f8-a3ee-ebfc4d9530c7.json and https://artists.proofprofile.net/proofs/artist/ea25c738-507a-42f8-a3ee-ebfc4d9530c7.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58cb6fda1b65b7827f9f3c4d548d69ec1ca5264b1efb9fedcc787c373d40d74. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QZ8BZ2408338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80052aada46de015de0f328c96d14ea4bfb2f2dd7bfd14905ab43b5b78f5bb4a. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZ8BZ2408342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e9cf1f44719d2caac9318f93c8c6948f2f7aa96793f3e51369a7d22cf8e690. 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/QZ8BZ2408343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f59dc708c0507f08942fc6512b983d278298bb4ca1011b260669fb64e879e6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZ8BZ2408357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c1e9bb338fbf7d85d5cd4a5840a976301864b55f62a37e23aafe733bf20b12. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZ8BZ2408363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26af64ee47c6e475536d93b8305ebd2648bfd80125fea0c6fcb6a423adc6041a. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QZ8BZ2408376.
1670: Sezon 2 (Muzyka z Serialu Netflix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e758de80aafddb7cf50881c7ec0f107f4b0d607672a20b44cd517e1132da533. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZ8BZ2514239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10f0fa93bab152a717c6ee92943934459e5c3ffdd186b5cf99aa0cebcf4a9e9. 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/QZ8BZ2514240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6392d6e1c6f5cdd6a86b4025fe38b947463dcba21cb9dfa1f2395c0236de3031. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZ8BZ2514241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8cf6c7445e852798cb6bc3caac8641b8c5d951146a4bb113907abdf4907966. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZ8BZ2514243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bb1f71393c7ed3f24e9048de39d9263374086cfefe7867399571a55dbb6c8e. 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/QZ8BZ2514244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d86b606e6366d186b62476b9bdd4ae5a58a6af7701ccc0ea5293a970359a48f. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZ8BZ2514245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeaaeb37d3db7c8b80bb5a4da325ddd8e1bd2aadb1dd7a61efdf994bc8abad2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ8BZ2514246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b52a4d196f67e38217d9b52e44bef4fe06ad44d735671fa3bf80da2b702c6e2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZ8BZ2514247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe123501999f013f7e569991be992c7f504953b9fb67c3f746b72c49d102b9f11. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ8BZ2514248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e6cf920967b8cda0147243fe97f43611dedda6f82a9d40d167c81172ad78c3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ8BZ2514249.
COKOLWIEK W ŚWIECIE JEST WSZYSTKO MARNOŚĆ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbeb75e616001299145815b38a2342ec9dfd0ee2c9a5e4f7caa1e8b2b2d286d. 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/QZ8BZ2514250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f5d3ca46aa030f5cc81a74046b66c695331c201b13d7bb94b93fab12918100. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZ8BZ2514251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b2a2759cdc1d0f02e262865650a4f4ac1ea853ed3fb89db80eb41d295db05f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZ8BZ2514252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a5a5de7c70f9b5a1dd8ea181974b1bb8d0922c64ea16d1c1aadba865bc4e88. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZ8BZ2514259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8d985d4c601900a568b719694a78e92e72f5dab89386265425b6579a66607b. 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/QZ8BZ2514263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd25a750a3e8843074131a0660747cc4aa3bd7e962e66196e33520eac770d8fd. 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/QZ8BZ2514264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ade941df6ad267ec1742aa53b895104563f507d44e063a03d3bab85ede3e548. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZ8BZ2514272.