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 0xbfa2bc8d01f34a7eada80ed8fb6244a3a5e34687694f3a352b057b6bbc3787a9. 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/55ad22e8-567a-4581-9acb-1735dfba3e69.json and https://artists.proofprofile.net/proofs/artist/55ad22e8-567a-4581-9acb-1735dfba3e69.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 0x34ba8e8baea53ea6ffe0a62a7d1ee5e77c110f7e3f908d6f57a67954a5bb8b6a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKA411800328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f9a0cf8ad81e629f2f8c9e8f20aec661b28133c098b34882c54816a9e1fc24. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:22:28Z), 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/QM4TX2471271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15c4702cb61b9cd58d7e45d4c7aacaac793bb112b6caff6c137528b6882a899. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/VNA0M1908146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53550666b411647f84c963893e77ac1e9356c108af64fc7b39a0c0e1b7eebfc. 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/VNA0M1908145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc424291b96e52e8c4d6de4211ed5bc09ba847b7b6be5ae14085a3b4f103af677. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/VNA0M1909728.
Đôi Lời Tình Ca - Live at Hội Đồng Hội 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80c0f72f48b3447e6e04c76359f42963471700e7d115b6323932ac8b6c9e69e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/VNA0R2000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1451c6acf93bb88cf11ee9b77a80224ad5b357631063048111908eaee6e314. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/VNA0R2000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51109c12955eccd81923e7ee6e42ca41ac7ceecb43fc36548d8631b9790f92f5. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR96X2191775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805f5b65df9b88e086cb97d9b806a1b04c5e7d82912d4384a43c2d46378db066. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:51Z), 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/FRX202123603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ced36968dc9618cccae59be99b95c0fd5276b0cc2dc3f60f5163631fc98e8b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:35:58Z), 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/VNA0M1924260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dc26a90ef9579914dafd36c16f95bb7d2e019d1b7fbb26ac7a344689fbd83d. 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/VNA0M1924461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7123e73f96140c39ba1dc51b52c2f9fc0f52d7ef8b0b550c4a95eb004d49f7d1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/VNA0M1923572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf4c951b69cce5f0f2f51421a86643e146ced0022b4cd83e0ddfae10de39eeb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:13:26Z), 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/VNA0M1923935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dc26a90ef9579914dafd36c16f95bb7d2e019d1b7fbb26ac7a344689fbd83d. 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/VNA0M1924461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1381785f83abfea8696abf62515fbc01dc4c1514fa68e18b8b5598c613831c69. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:45:31Z), 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/DGA072233918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0239cf733e7d645c6d7e2e53adeceee9612518970f334106e90e05d7cf6ba572. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX762386480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44eb54452069a6ed3d2273affb2db1eed3b52c6e46a6ef0476924b70532005d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX762386481.
Bữa tiệc của giác quan - Live At Yên Concert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286188fc72a3a8cee23d48ea2dbf783303c3bc83aabb3b3994760b41388bef68. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX762386485.
Nơi Pháo Hoa Rực Rỡ (Special Edition Từ Đi Để Trở Về 8)