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 0x17437a250d27c05699f0e65048808fc19f2ffffea2eac8f960579a3b82dce18a. 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/f904ab46-63f8-41c5-8f65-52ed22c4aa16.json and https://artists.proofprofile.net/proofs/artist/f904ab46-63f8-41c5-8f65-52ed22c4aa16.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 0x68e69a15f52cc2a24d96f863ba77a7d9bd5825f7b02f6d7d3a9c2b12ef562501. 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/FRX282051789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1ade0b0df76e053520d79c178ef1afa20b2a70802b59ccb7c802f6ce24d097. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/VNA1M2404219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021287f31c84438627d56dad8767b2213e377a99762be5e99d6f9f9dda4e8459. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:27:15Z), 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/VNA1M2404220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bf6297d25965a5ae2c6e0f8aee9f34e579bcc560458392f67493cdca66db4a. 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/US38Y2527198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87ecb1603a5606e76ef2e2ac5e309ec0661b74e692ed7ea1fe8fe24daf10763. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:27:40Z), 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/US38Y2564773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188c41be02a1245b7e1700729734570c605531d8b439b93ba1038cdcb3ede2e6. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/US38Y2568008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df1cacce8e331b12b9269e370d6821cd052581a7b614cefda30b861aa01dfa0. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:07:43Z), 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/US38Y2568006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a51e4cbc146e5c6670bcda6217453a328fe79202743e906a55696d0252dde8f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/US38Y2572495.
Ông Bà Già Tao Lo Hết (TanKha Lofi Beat)
Ông Bà Già Tao Lo Hết - TanKha Lofi Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28681971df68a2d0da16481191d5807ff50cb03b772cc3557ad2edf5d492548b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:49:21Z), 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/US38Y2573058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a1fb4cf25f6ab8c34948b066c59eaa7348aff254c32f5dfd65b3b3254ee01e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T16:28:45Z), 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/US38Y2579290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a17506ef3a3e746badb0f415e098dc5379ba6ba4d064d600b9a2640d3b80ae. 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/US38Y2579293.
Ông Bà Già Tao Lo Hết (Cao Kỳ Lofi Beat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421de0015fa62b1479c01def89e7078579214671f899c2488d4c2280c9a6c3ec. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/US38Y2579287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd41019bc99d832c495eec122c47337b55dfa527eab079f01b12070e38fa9cc. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/VNA0R2503036.
Mashup Đổi Tư Thế x Trăng Hoa Mây Mưa (O.CA Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12843566d41d89264161750cd161dea1d278cbe673690472db3d397d59d2e266. 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/QZES62270205.
Em Iu - Dustee, Monotape & Teddy Doox Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d59cd3504233ec1f2a4ac30ca3a1d4f0c847c7ad1e6ff8484dc767d29076f39. 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/QM4TX2480737.