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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d39b8b585b05cc958ad1c1322e9602b3c7f262cd399c696875e30b4e877152. 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/372e92cb-16bb-4e17-86c9-f967fae0d9a4.json and https://artists.proofprofile.net/proofs/artist/372e92cb-16bb-4e17-86c9-f967fae0d9a4.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6890fd48c9fa293f368152538d5dedc8ac14a381f8fbe88babd31c1d828810d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/VNA0F2320328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dac25411338cc378d91eae805c8a6fdbf103c8f1763a4f000cc4a2bb9737ac. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/VNA0F2319705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2ce39e7299bc4fff7fe7e721cf30ac3476650c4702c133bdc5e0aecd459df3. 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/VNA0F2319704.
Trường Giang Dậy Sống Mây Níu Chân Quên Đi Chốn Hồng Trần (Remix)
Điệu Nhảy Làng Lá Remix - Trường Giang Dậy Sóng Mây Níu Chân Quên Đi Chốn Hồng Trần Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3894be49794d6643c2ba7a7f78bd76bd2885408c68233f33c3bac0431afe8697. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/QZYHM2375252.
Điệu Nhảy Làng Lá Remix - Trường Giang Dậy Sóng Mây Níu Chân Quên Đi Chốn Hồng Trần (Wan Remix)
Điệu Nhảy Làng Lá (Remix) Nhất Tiếu Giang Hồ - ChungQ Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66ea654a32c4ae369783d5cea014fa087bf6fdf8b280f21b9d40fd63cdf6da8. 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/QZYHM2375268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8849cb8aec2b282b76831113965552b655cd13062d57ff7217ac5126a78b72a6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZYHM2375247.
Tát Nhật Lãng Rực Rỡ (LuonVuiTuoi Remix)
Thiên Hạ Khắp Bốn Phương Có Mênh Mông Rộng Dài (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78eab2b849d2573af57457de8fe08a050afc189e166122972e2343a74ec4b35. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZYHM2375279.
Nhất Tiếu Giang Hồ (Đạt R Remix) - Điệu Nhảy Làng Lá Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057993ea23a9b47cd357d3c44683bb27e59296f70f0e5a8f1fd18685b66b50f2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZYHM2375269.
Loài Hoa Đẹp Nhất Thảo Nguyên Bông Hoa Tát Nhất Lãng Mà (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c94a14ca4a4085bd9311fcf5c5a1fd60a955208dc8449ca8d15299580919b7. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZYHM2375256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b7882d76b404882973678ad1ff1807b7ed2c73bf1580b3d9ce6663eba016b9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZYHM2375091.
Tát Nhật Lãng Rực Rỡ (Hoa Hồng Dại Music Remix)
Tát Nhật Lãng Rực Rỡ (Cozak Remix) - Thiên Hạ Khắp Bốn Phương Có Mênh Mông Rộng Dài Remix
Thiên Hạ Khắp Bốn Phương Có Mênh Mông Rộng Dài Remix - Tát Nhật Lãng Rực Rỡ (Kvprox Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64e6f7dda6f767ef44c75e8736dace880fd719f0c7f9fe1753044bdc05de80b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZYHM2375077.
Thiên Hạ Khắp Bốn Phương Có Mênh Mông Rộng Dài (Speed Up Remix)
Loài Hoa Đẹp Nhất Thảo Nguyên Remix - Tát Nhật Lãng Rực Rỡ (ChungQ Remix Hot Trend)
Loài Hoa Đẹp Nhất Thảo Nguyên Bông hoa Tát Nhất Lãng Mà Remix -Tát Nhật Lãng Rực Rỡ (KENR Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5316e9c18839f522886a33759845da163c9abee8656a49630db731b91b1f9c8a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZYHM2375121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279c5f122be3178fe460519b7a0890fcd22f1c8d001ad2bf83d807c00fe8269e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/VNA0F2319266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf3e95e50585c297b3d4a78bfbb060dc9d3b97d9c38004e9860d497fa88751a. 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/VNA0F2319166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483a870a1111202bc23432a95c88f176d571d7c863a63b7ed485e6e104d9fcdc. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/VNA0F2319126.