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 0xa3e87170653f1d71bf130a1e534ac6eabeda640169722d963777e2755d3a334a. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b14a60c4-c79f-459f-8d50-87471dfd3d8f.json and https://artists.proofprofile.net/proofs/artist/b14a60c4-c79f-459f-8d50-87471dfd3d8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kumpulan Murottal Anak Terbaik (Surat Pilihan)
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 0x6bcee76a75ac4f31b6e07a1cd612012161fc485780ffa2ef89cfaa9c904bc1c3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/IDA412104115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7bb1088b877cc284846053ae07109c3927aac899fbecfa00d8b51890d32c1d. 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/IDA412104116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa5920131e93e0d19e100ab2bc0c9cd775c0d1a0adf6077c9c7e97152618fb7. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:40:02Z), 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/IDA412104117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf1b18909b3bd1bcaa7f03dfcbfc86f1d45c11197981b532d8d5e5b9d9b5709. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IDA412104118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719f12183ee9bdc36cfc02e6ecf65a3c6bd831d6ed8fcbd2268c4cf0f608b26d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IDA412104119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7c280c01bb4c69df265e7043f6bb2655be0ead65cfc9cc927066b5d9c65e5c. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/IDA412104120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4917460f26161ca4fcacb3f56f374c00356e297ba4f2ac61bc4259e58dbab3. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/IDA412104287.