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 0x23f5b3ae23353cb6d83a063e68d1d6af0764d6c63d2b71bffd84daf9977cca0c. 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/0c307a20-85aa-45c5-8edf-84da8411de44.json and https://artists.proofprofile.net/proofs/artist/0c307a20-85aa-45c5-8edf-84da8411de44.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 0xc5d20a1016b0b15a074df70551177af7504ae407a81d82926bd2a2e6200abec8. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/KRRAR2021227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc88234c0c136f4d81f2781c6e8d5b6cef78a1963996535c5b8a935cb8ab36ac. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRRAR2021228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84d661282b9dfbac0bd4cf4f4a1af2c574b39fe58e68ede55363987761b4329. 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/KRRAR2021229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686e14b8f7bf4b5b61e954f21ad878ae8325feb49c426bca63760eafc9bb26b6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:15:40Z), 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/KRRAR2021230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850fcb270cd3c71a573e491a8b3acaeae641c53eddd5e0e5558e1a1018be0407. 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/KRRAR2021231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244694b75756b73729d5cabd82d01e3cb9e0a70a7b5602986a4e05e0a33f22c9. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/KRRAR2021232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4790020fec9de8774e7104f8f8e238278cdd70b6189ea3ccd75f0fb103c2b905. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/KRRAR2021233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43624443f457d01fc81607dd8a5352636c3e24ac448ddb6fbb87d5db580a7ae5. 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/KRRAR2021234.
Ronds de Jambe a Terre - port de bras (by N. Kim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382ef7ae76af1fad5297c0b45081715152cdaa0190377ae433d50d45e85633fa. 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/KRRAR2021235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d9b479d7ee8566f3e3e0dbc55425cea4453008ea6cbd27287298c5e4fb906a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/KRRAR2021236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18832e58dc84a8cefe0083f66d2adb114bf5a44a5a5259b89cda2d21dbdd921. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/KRRAR2021240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337bf182196d539336d195e23da9d9b3a3299bd2108a204ccc2eaf7f697dccd5. 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/KRRAR2021242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76423f303de3d39d5572d216e1db196d219510adf4562c54cddf345a0947c5fb. 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/KRRAR2021247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116ae443f954c4a20e9ee9b6efff289bca9fcf5c6906eb5daa336b71a2e2def3. 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/KRRAR2021250.
김한나 발레클래스 음악 소나티네 (Ballet Class Music Sonatine)
[본격!챌린지대작전!!] kimhanna - Are You Scratch? prod.Zzindda