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 0x3b0370aab45e7ad410f788959aa32ac310e55a63ed0c995b8a965e1270dc7f17. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/276f30e7-03dd-4bdf-8d79-039fbedd7a69.json and https://artists.proofprofile.net/proofs/artist/276f30e7-03dd-4bdf-8d79-039fbedd7a69.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 0x3876a5f9d60d05ee12d6a035e09fafc4b016af06659803f9205451608908301f. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/PLA810300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a075b219f207ba8953902d689b054168ce36ac617b65475340e4dab6154e0f. 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/PLA810400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161cfde85e37e70d560a74f225bd42fe5804edcc6acd30d11461ba0544d0e460. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/PLA810400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5101a252d9bdcb64b19161b162a857fa821314356ad520682b4d1b7c0e9245b4. 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/PLA810400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037a339db825da37ac0b716a2e048bed03b8300287f468cd17890f28691e1d73. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/PLA811300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d77c7023d54866993bfa8f7e8ac49985c64bd970a17ee0a93931771519f024. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:47:28Z), 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/PLUM71400719.
PRÓCZ CIEBIE NIC (LIVE - Koncert "In The Room")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4345c3bb722fb00f02445fd03abbeaaf40cd35ee170e9902124b77fd5507d1d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLC060700047.
O miłości po polsku, czyli największe przeboje polskich komedii romantycznych
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f75ed2ddaa6cd1a05bed3c65edfd3a37777deed14853976a71f106281cc6e73. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PLC141200123.