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 0xab17b38a7df72368f244692211f2b1af5963dcf96f684ebaf43028eef4c660bf. 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/4404df74-15b4-4f00-875b-2e9cbf5060bf.json and https://artists.proofprofile.net/proofs/artist/4404df74-15b4-4f00-875b-2e9cbf5060bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Băng Nhạc Sơn Ca 6 (Tiếng Hát Giao Linh)
Dĩa Hát Sơn Ca 012 (Thương Nhớ Một Mình)
The Best Of Giao Linh - Chuyến Đò Không Em
Những chuyện tình ngang trái - Giao Linh - Trường Hải
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 0x1eab7e51690ed01832b59614168e99a51310536ccfcfcaee095fc00ecb6c192b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM9SX2204510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca7e5c3e59eb69d2e1786063c9a8f10d206905e01ef539f0fb90711a320159c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:40:47Z), 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/USJ3V1128649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c5eea69d9cc5bd789e5db29047cda8f8527b33c4244fb18dca9893cd9c92fa. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USJ3V1116570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbcdf3bb64990535dd1ee4b96abbddb6f117aec3898c658a2a9ba3ef17cefb6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM9SX2205479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1573b18f230b840fbf698e5a9e05035b3fac81b67744366b8032657970ca559a. 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/QM9SX2205481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f80e31542a0a269674a1ebebb7bb06cc1f380e53492c929d1ba2bfcc54f7789. 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/QM9SX2205483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7df5539328dde490de79792e6507437d2e2dee989ee4becba719fb7a29566ed. 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/QM9SX2205484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5b2fb6826b156d26e83fc2c48fc93882921d1105c02d3e8f06f2aa34d107e7. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QM9SX2205485.
Music Box 53: Giao Linh & Phương Hồng Quế
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f88472cfbe60bb98db053a86f8c5f891c4fc474e8c4a6a6315dfc861bf2c53f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/VNA0F1708189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041a527a2d563a9f014b549ea5c61dc1f747400b983eb4ffd086152ceb2c59c4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/VNA0F1708190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae26b6923920458f3262c75a593664cb8bf80ed346489819e1df39e9bddff004. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:43:37Z), 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/VNA0F1708191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74c2a5c37d4417c30a354e895e711fd4aa8957efe10bf7251bfba90aa135737. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/VNA0F1708192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3003c063ac52ca94e991e2d72f23eb0bdfbbdbe1ce9452204bd8f92ada9fe3f7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:50:18Z), 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/VNA0F1708193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dd07776699b6336b975b6e6ffb7fde4ef2fba6c1498ac00dddc5e3977a7dad. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:32:52Z), 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/VNA0F1708194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b226e9a460972f9409bf6184cf5bd7e456ef13ec6d37f51223f6c08a323a5b. 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/VNA0F1708196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f5039f41702068f485b7b34c7a0c75978128e6c743f37fbe146095b432413c. 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/VNA0F1708197.
Ngàn Năm Tình Vẫn Đẹp (1988) [Remastered]
Người Tình Không Đến (1988) [Remastered]