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 0xbbe452acbaf116c6a3e7f55923c27ba936c7e1140a3b535bb54f9bad58a7bcda. 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/02117dd8-c20c-45c9-8c7e-91a295d98c60.json and https://artists.proofprofile.net/proofs/artist/02117dd8-c20c-45c9-8c7e-91a295d98c60.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 0xf9ab4e1068c24c64f8918c7f75f13da04372286188443f224cf4c91a25a3717d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:51:22Z), 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/QZK6N2122241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2ed54ba7cfa25ea6397d11b79a834bdef91e0042d42254bea8acd546c8d5df. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZK6J2114562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b9145de6f0109d9b68439a0f0c812fe9ae619b2e26497161564b36256144c5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6J2114563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac798f94561422a807809e80d3e0b32aa1b31faafd44ef539136a67b0e3d83f8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6J2114564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0194d07fbab2bd446a82226565e50be894b2c1da0f27fc13d4d19918a77da423. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZHN52234363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302f53150231bc786b753609880ae80e6a5af9465fb6357c129998cd7eae3e80. 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/QZHN32378276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a15d4023efe1dc75d3642485c0bc97040a7b23a593f38d0080ac7df6867c220. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6Q2332917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929060898e03d55cbe59487a4c40912d8037123e51cfef8c1d900271204e20e7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6G2359423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7293f743640d113cf0fc97494f7e80d7352bf9d1f86c5976e06370bb641371b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6G2359427.
Ngày ấy anh tưởng mình vẫn bên nhau (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86dabf7fbb1c505f8ea2712213f6fc59d661d6c91f1c5935a8a0183088c8041. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWX2382700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1733854b807503ac518e1b4b14e5393b560c0b790a3827565e384011e61e4e04. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:59:45Z), 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/QZTBD2320906.
liệu ngày mưa em có buồn (Special Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82273b93f8c0ae36d2db5745c8166333e7b8df9860d04d0cffafd0bf01ed118. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6Q2498094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cfd2e6cea5de106c593ac7c5489f40d407a5c353cd1ac2590f244d40909f42. 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/QZMEQ2435173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc31e05c391f9116f694d85347d586ec4403c895aa2f6528d8718d95d3e394ac. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:36Z), 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/QZNWU2433964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042e5bc1a16c7b52c93ec2703cb88a9257b21c91d0bce3cd3c82278d8e51ed3a. 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/QZNWU2435218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32ff94814f93ae0ae1324d67b04c5d4f7351829be5ec9ab9dfdd5aaad0992ab. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZNWY2416395.
Anh chẳng mong mình có thể nói lời yêu em
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7f25181cb225843e43350ea9a6ae07d8a20b0c9885bdf98b34b72ba7e775fc. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZTAY2445304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba809d099a677104a99347097ad5cf79181ca6dd251f6f6c148d238e4b631c30. 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/VNA0M1938212.
Ngỡ Rằng Ta Sẽ Tương Phùng Hóa Chốc Lại Là Biệt Ly
Buông Tay Em Là Điều Duy Nhất Anh Có Thể Làm
Chẳng Biết Ta Đã Lãng Quên Nhau Từ Bao Giờ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c96d341536fc99cdd489637eb56b4a57a8b49ef45c807345a3522a92f853c6c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHNB2524786.
Tiếc Thay Cho Một Cuộc Tình Không Trọn Vẹn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83155082bbb556a60bf7a4fca8ffa6a3fc3bf21be783572022d7554ba248afe1. 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/QZK6F2555785.
Sẽ là những chuỗi ngày vắng bóng nửa đời sau
Khi chiều tàn về bên ô cửa sổ (Special Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e31c577f09f704b1c018e0d0a128fc5bcdb20e3d7c74b934036a4c100e295d1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:59:33Z), 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/QT3EZ2507179.