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 0x9a48fdddfac0ae1c880c0fc3a84342309c656c691f7f445fea9a223d9b9fe3ce. 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/0c628618-9259-4ef5-902b-2753220972ff.json and https://artists.proofprofile.net/proofs/artist/0c628618-9259-4ef5-902b-2753220972ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hennesy (feat. Minh Triều) [Acoustic Version]
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 0x281f0ed16b303a1d9ee24bc77cbac0f4ff7ffc0a815958342154e2f105050735. 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/VNA0M1906278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe541ef0bb26e614193f8d9a2be73dcff5f503d41e153811def439fad94ee338f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/VNA0M1906276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6611d0a8a443e90bcad97969436c298219b52b94a03275476cffcf2b6e76ed0. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:40:54Z), 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/VNA0M1906264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda149d008c0521f123830d12eecf4a34a20b0af68d9a4f42883667c518247e9. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:24Z), 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/VNA0M1906267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e5b7cdc6a1c83941135bc6c81183c95d2e3dfb62c6b30a8ac42d5d801ea067. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/VNA0M1906271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746a3fb3636b3df2ba052eed8aa090a6be41d0aca8ac9785a816822b457f5c82. 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/VNA0M1907322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cefffecd26766f52376dd948f2296617b37ee3a6a15410d52d63987aaae1932. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/VNA0M1910432.
Em Còn Dùng Số Này Không (Flip) [feat. Thái Đinh]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b64957cec78e629d1f3f4acc5bfabbe7b54016ce89462b5021c8b7658e2bc2. 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/VNA0M1913484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7a819ec0ae4f730d07e2c6c1c329fc833554f157132d38aac4c262277c2838. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/VNA0M1921973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ffd9e959a1d1f69d5eee8069db8bd95675a016df44b39f97541068477584bf. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:47:58Z), 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/VNA0M1926682.
Lại Gần Và Để Anh Ôm Em Lâu Hơn - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f5501ac9d1d6de41f697b4ed1bfead4d48828ac8498665cf107bf4758f8961. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/VNA0M1927224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c2b40790fb74e3157b062e207079391925a1880e4a60f2f116afe88fe0f929. 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/VNA0M1928969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88882eb313d5c47962480529c08890973ad0cef0a03ebc25298079d29e250c0e. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/VNA0M1929055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e155f5d531a4d380af5c3e2e8e54d1d8f501e6ed6a1225b217c13021cecaf36. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:23:39Z), 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/VNA0M1929437.
Những vì tinh tú trong đôi mắt em (Soft Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d59fa982205ba8747c1da93d4c09446420d7b3b482febd60facc0de099573f0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/VNA0M1931737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35b8cb90653d2e90730f51a923f63a78a52a21016cf4850b7f7eb8f4f58ebe3. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/VNA0M1931738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e3db0adaf701517b91e331f53a5ddd629603e49a7a3bda1922e970feb6eb05. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/VNA0M1931739.
QUÁ MUỘN RỒI, EM SẼ SỐNG MÃI Ở TRONG ANH
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b3fb9487b894c2faff3958023df52739773454b4a7a7753c5f6edc18ef4d6b. 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/VNA0M1931740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc4245ab3311a6eaa74c36f8b2f9f4e02247b8898579b74ff54ab217de7e83b. 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/VNA0M1932012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e59c62373f035185e2d8b0a5d18f563285188ae940354f7cdd3efbdfd45b8e. 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/VNA0M1932133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5be741745db996575691e1e5b3360c17b26e6a454a57e887a5c08920c26a9e. 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/QMFMG2336486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b8a9750103100bf9dfaf70b92f34aa7ae5e1dcd93e2aa4edc844b9e7c147c9. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:50:06Z), 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/QMDA72400854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2218db79299eb5478ed87870933f3fbd3364c535f143eac5b84378bb8487f53c. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QMDA72400842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6ee9c52d4df7c148b6b86e50a4c45b4560e8ece4d205cd33aa8547cb103f35. 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/QMDA72400867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32c98a378c8c2b113305f9098f1fb8cfa22e140e7775c428bdbc4cb5bade674. 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/QMDA72400817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0659ae0f0dba381e041fb44b27f6721d123442fe2ee9f808f769da261ad351. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMDA72499688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ac03cca671fd73c50b37730aa27b5ea17061df3289ae56c26ac151bb2961f5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMDA72499689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7032b98bf24ac1007f7ed8cf162e50a83c8a1983abdb938632277bf10f6158b1. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QMFME2472691.