Isaac is one of the three patriarchs of the Israelites and an important figure in the Abrahamic religions, including Judaism, Samaritanism, Christianity, Islam, the Baháʼí Faith, and Rastafari. Isaac
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 0xcec7650b5db285188a811bb31cdfda26237bfef7c6e54a284b2962ed59448521. 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/c934adc0-46c2-4956-9be6-b89920dd4915.json and https://artists.proofprofile.net/proofs/artist/c934adc0-46c2-4956-9be6-b89920dd4915.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 0xd2d067699335933db0fd0e3f33d230ccb869f81160702bcc109e667a121301e8. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:54Z), 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/BGA261761103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee74fcaccc29b28ae07e90295084926ec5f3b626b1f8d5ba5f61fd5222141874. 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/VNR011052076.
Mr. Right (Khi Anh Yêu Em) (Dance Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa78506b566aee3e4e9f431201e2bfc46982b8da6de63f308f41ca75dbbbd43. 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/VNR011052079.
Mr. Right (Khi Anh Yêu Em) [Dance Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cc209e19e1c5d4edf6087193979fd38b785949818c431ec66db7eede52dda5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/VNR011052165.
Giá Ngày Đầu Đừng Nói Thương Nhau (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3099f60afd96ee3d5932078467babe8d870898f026545bc1670136046ca52d. 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/FRS182043917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e270ac4d32a5b11305873e0773f773812c7973e1b6c251195fd6a2336bccfb4. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:10:09Z), 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/VNA0M1924307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f635fb5cf8809c976fc51ccb64e026dc327a7560ce08d78fc123cdfd600b78. Chain 2 (Bitcoin): anchored in block 957529 (2026-07-11T06:30:13Z), 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/VNA0M1927199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295531acba27186ec91cc8e2c8aa18b7b0c72f31b9bcbe88af71e63ba52e56f7. 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/VNA0M1927200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786332c167dc370aea04e43890ed2859d9e03787208658520ab2f0a81c56cf75. 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/QMBZ92252064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b792fc5a3f0355d0e955d7454dbde0e1d7acfa4844f069e14bb456ad01b1570. 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/QMBZ92297435.
Khung Trời Ngày Xưa (25th Làn Sóng Xanh)
Khung Trời Ngày Xưa - 25th Làn Sóng Xanh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb584447d5f90fca5cd8fb71f3c225bbfb5e35d0080c54df6d0cada002f31c688. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA062201269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe479a13df2b4ef97faabdacca693e3ee258a375ff6951582cd7e3c73af593656. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:37Z), 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/VNA0M1929312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ef5427fb0d0b218c2c7bfb95c4ae32e757aec72fc5bd625001e9fded9d77fa. 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/DGA0M2354645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77467f988096f942eedf46db33303276d233bc98cb67a579e0a33bd9ff6f31cd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZWDE2397403.
Tình Em Mùa Xuân (Biển Của Hy Vọng 2022) [feat. Isaac & Hòa Minzy]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be0972135a0e70d334d4cd10ec9e8924ae951f46306f9339e47f259ab84f543. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/VNA0M1929535.
Thế Là Tết (Biển Của Hy Vọng 2022) [feat. Đức Phúc, Lâm Bảo Ngọc, Tiên Cookie, Hòa Minzy, Isaac & Quân A.P]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522361dafd18c9d653e02cef3f96cdce9f84da20435264aa1845961cfcb51605. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/VNA0M1929539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304bd92bd97121cfa72431af3f9408ecb73e25400075b77e74ff916d9674f474. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZS672194758.
NGÂN NGA (feat. Isaac, HURRYKNG, Negav, Gin Tuấn Kiệt & Vũ Thảo My)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65471522a0707aaaae980599553aa3bcf603df60857933876183fce2b651e5d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2418915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cba00d78e2e90297377ecdf0c854b0fc9f4622225c20d633e90187677b54fd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US38Y2504853.
Biển Của Hy Vọng (Ngồi Nghe Biển Hát) [Tập 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef42ac983c2d913c56aad4fc8409d3326acf3212c24270fbdb0ffc5376476ac2. 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/VNA0M1929382.
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