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 0xcdd051196b7bc6b32dc5ac834fe1882b642b89790a4c973f997961b1894970f9. 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/188b972d-b10b-4ce6-bdf1-305ef6620d84.json and https://artists.proofprofile.net/proofs/artist/188b972d-b10b-4ce6-bdf1-305ef6620d84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
sapa ở mạn Quán Thánh (From Mixtape: Ồ, Mùa Thu)
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 0x7afe99a818d7111224dcd439b60cc3448a270fac1b8ff7eb729d33b85e5bc14e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SGUM72301385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6abc0d124043b7e2f7a51df24588975c9f7aad58408db32e50ee6c6acaaa14. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/SGUM72301386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc65e170c34d30661a542cf3b8898190df2275df03f272ddc95fc3f0854d3565. 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/SGUM72301387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b365570ca20017eccfc8573aea9a44e28b84d2fecd96669c70b58351c8699f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:01:17Z), 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/FRX202448599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faf9b99554babfdfb346ce332b74cb1406d6db01352e470fc5cf92cddd3f6b9. 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/FRX452469413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4597bbe9564ee60ab0b3934a71b71c1372097d5fd79ffebceb4eef4fee4a6e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/DGA062479938.
tránh đường cho zaipho (Teddy Doox & Wind.P)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42ccfef610cbb695cb73af86131e77422a4750d598496d8f16273f873922902. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/SGUM72500696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1df541a6d796b584c17f80c1d5a6be6c575df145a5443f118da6a8bb21d7cea. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SGUM72500613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb60ab20e44d37a73f3e0b2ecef2c0bd10d114305af05b2315a7e19fb03a1be. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/SGUM72500615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa007697503a14eaf17d363795347d27f0d74ed4ead866bf31a6c2aea209154e4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/SGUM72500616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23b98fc176ad8c1468939e2ca9a0f34212eb9fc63180f41529d0906fcf937d4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SGUM72500618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12bc2159b2f480c3555d5ae6aad0627ada4331b346f284c8f910e7c9d1f5757. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SGUM72500619.
tránh đường cho zai đẹp đi qua (Live at Bật Nhạc Lên)