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 0xdfd2e61a71949dfb5e3a67a86760c9ca794d0c46f7111b3fb6eae7e6b277e723. 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/d9277c64-cebf-4bf4-a2a6-d14e17162b2e.json and https://artists.proofprofile.net/proofs/artist/d9277c64-cebf-4bf4-a2a6-d14e17162b2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tuyển Tập Những Bài Hát Hay Nhất Của Nguyễn Đình Tuấn Dũng
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 0x8a8e47a1685e794a516a5bc33539818ad04bb80f21cdbffaf6b03bf1a0427f33. 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/VNA0F2305508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766b183fe348a6453143b9007079a82c25c5af1a9aaee90e02ccc9f6be56a665. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:01:31Z), 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/VNA0F2305509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2523cd270e3d24330ab8e2c0563ac4e7d7649c5f6db70a0d36e5e958b842d088. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/VNA0F2305511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9031865dd5bc97f413bbde715d9cfb095a03767f8208f54abfeb9630b1571497. 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/VNA0F2305512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ad79aa5f088fbd49b26f5f6cc4d75392164e4f197538229f54293ecdf8025d. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/VNA0F2305489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43d8bd162357854edb8c0d16a079a62eaeabe69fdba93178554a4e01239a3cd. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:17:25Z), 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/VNA0F2305491.
Mashup Về Đây Nghe Em - Mỗi Ngày Tôi Chọn Một Niềm Vui
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0164b2de0b5ceb13291093b3093f8a211f1ade19eec994a7fa9790deaac5e33. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:45:32Z), 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/QZHN32492868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c700b7b213ac2f027eedf4dfefb44910d8ff58ef7eb744d9e93ef372c47b268. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:13:20Z), 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/QZHN32492870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33633eb2d67f050a920cdf60a5463715bc23e2d7862f3d3cca9d79bdeb3eede6. 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/QZHN32492872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5b16b95c59280d7a6628fb4ebfd4bf7f7ab605b6fd02d1c5712c7d438e44e6. 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/QZHN32492873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c15da6a4f2dff134017d3e09951ed87201f23a68819998a8d78be9fc1dd9692. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZHN32492874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63be3b5028b839bf0158edaa5738faf9e11d460f99766995b1ce3189cdf93e40. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:28Z), 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/QZHN32492875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9b1f4de8d7fad386e12e3aeaacee3ccf51c2974a453dc82672a83cfe92a602. 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/QZHN32492876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0fedda355a939a829b91d5d43664e7c36a27db6d9eb918e13bceb4127eb71f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHN32492877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87273bcfd89767803bd66a1f4b002464873fa38e324243d4fb94d0bdf07ee2e8. 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/DGA0Q2306626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f878be71a70dcbb3b360732e6be3281b4e1ebe4006c4895b275e589678a91e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DGA0Q2306634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe953c52ace7fcd70771d589c91d752ead55e21957bd962d2310bb54d90e4cca8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWFP2322460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38511948c870ce584d809ea14a797435b81ec2acc520ddc5a1e0dc4d5b52205a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:56:32Z), 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/FR10S2445710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de4c6be0ac4433a0662eec441753c1cf9be255afb8be7bb67af443c1da4b1ad. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA62427471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381bb248168ce31caae5ad8641cde01f8a7aabf13e2632ec1689728434dd609c. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:26:05Z), 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/QZK6H2433492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d3285fb373f5fa85bea62449d217bf34ffca300e2445cf69938a42228bf930. 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/QZRP42452943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b1e33681326ba8d42470bf9bc66d25d3548ff40aa311f978540bef3687cfed. 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/QZES92458793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a15b48024aa88ba84aa274b2395c72ae1ff27685ef44a8eabbe1a771e2b784e. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZES92458794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95be3c04934fd8b4c6c9d652f897d3c5fc38567951bb7a282053a0f456c05f50. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZRP42452945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858d0191191220da0b2f5efc2b8ead0177ba970e57e6edc42484e39a045f3fef. 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/VNA092402178.
Chân Trời Và Những Đám Mây (Soundtrack from Làm Giàu Với Ma The Movie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a21c1c4d15cfd113065bc6f05d6b8741f0cc52ce7718095e5db8e03d35ae4f. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/VNA092500312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb1288c52a172adbab07e1c52015bf44244eef33f717e3bca44d829014a45ab. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:48:45Z), 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/QZHN32550090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4646b773ac4cf3d9c4f2eebe91926e040ea29f222b072d15a20eb7b5f1856535. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN32550091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c2d32170d23361ce3e3b1ae849e1253891d0edcfd080a7063bc20084e51091. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZHN32550092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c076d9181a327df6dc8855bedd97482d2cf0739cbb88bc0998ce62bc007d4e. 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/QZHN32550094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c997d05f4acdb7d6aafb4986c91eb5ff452c302ceffe68c4a5077fec0cc15d1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZHN32550095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af62c5e2d33b4c02e92d7db5534b5b1df6c2afd5615d32816f96155722bc93e. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:00:47Z), 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/QZHN32550097.