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 0x71dcbc161446af49dffd7e4e4faebd4abb2e79328f4f654335ba4d909679bf17. 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/666ba4fc-db63-4572-945b-d2cc2d092941.json and https://artists.proofprofile.net/proofs/artist/666ba4fc-db63-4572-945b-d2cc2d092941.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 0xd7873ee54eb3c3042c52ddad445d9aef02e122dc9137f7dc36c5a221feea0d84. 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/QM6MZ2538140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed90d6ccc4c099bb9b89df5579fd343cf0a080d52e4b2a5db1608f3cd4e38cac. 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/QM4TX2598635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fecb6bbfa78fecd6bc025adfd21a830cb54aa164e2d3e72cecf7822e4b5ad86. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM4TX2597036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffe05d767d53d4673aff149fe601d821124d44c106311c74a32def57f738244. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM4TX2559070.
Ngày Xuân Long Phụng Sum Vầy (Remix EDM)
Ngày Xuân Long Phụng Sum Vầy - Remix EDM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8030ee407005c70b52dc3ae0414bc8f31264cf12fb5020982fda95bb9b4378. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/VNA1M2402845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63695397d7483bf06e3b7f2e7ed397368f4e240adb2307bb7e9e0d4966bcf13. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/VNA1M2402842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12e99e205c7c3755866a89aad742e041bed24ca9d377ae475274be8270c43b7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA1M2402864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebb11842ad614b20d863d2cb31338d5acfd7b5ac35ea47986b879abbb9c0692. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/VNA1M2402861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858de3bd98d0848e53beff836d1a04c782d43ac7ad3a20f95e996e62a06cd2cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/VNA1M2402851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96baa098c1815be1de1f2efe5f0e5058edd16c1ad253a6dbc0c4e41c070ea3e0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA1M2402854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13f4a1d952d25ff10bae1de57c62202df8960c5bb7b9f9e8ce01d0f6d5177ca. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/VNA1M2402856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dc5783d246933df47efea051403dd50b1a0146b63001804dace1d996f6ae63. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA1M2402850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2defb92e1d9016724e6f5fe8a04421bcae25c65f45d98471139c5acbb75a75ab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA1M2402853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d1ca01f7e5f40136945bb964cbd42b07334dea7a6dc597572628c472b00612. 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/QZWBE2250931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2592466adc71743975632ecab4d32d920865d4b1666ca3692a9f0a78bd10d2cf. 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/VNA1M2401812.
Có Em Là Điều Tuyệt Vời Nhất (Hyena Remix)
Có Em Là Điều Tuyệt Vời Nhất - Hyena Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa2e924d671d066ede1991b6d0ec5a3b591cdd6dfc18b2b18e655233b16233b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/VNA1M2401956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb329b500f1e0241824dd1e682be9df92e04046788a060dfa398204ededb8246a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZYHM2372493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375c9584364b02aceb2248cf4610b051dda219ce2871132c5dbff640239ece42. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/VNA2E2310594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfdef2672b7ac0a21844620f4fa9b1723c06fd3c6ed51c9a3cd97a291962feb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/VNA1M2291504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29795e62326828bdc80e72e269a544d58ec9782accaf7daefd82ea376227d570. 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/VNA2F2300541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6559fc85bccee2731c2457927a4a530d6f08e21c5bc3d39da96746f6341bd456. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/VNA2F2300474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ad414613bee0d2adccba741a39df00f09a724d901e8660ae05f4f79afa063c. 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/VNA2F2300473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc0368749ebd86dfacedb585e3430f94c33cb5904f2826a9c9b3c680d3145e5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/VNA2E2313303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e0b338ac9980921e243ee21b1e0788b55e34a4d4d2ebbbf64aa44a23508cf3. 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/VNA2E2313280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdc2586b0ca26bb51149533d377e9b65a724487c07ff3dd23a96e5b83ebfbb9. 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/QZYHM2421029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadac0493f4e8dd8c7265bf82310dbabc29fb9a62c324dc52cecf6ca1f62eb0c6. 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/QZYHM2417329.
Cho Em Gần Anh Thêm Chút Nữa Remix (Deep House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b2db731895c7f2c5999c78a1361f212951d73139f3ebc1464bb15b18fdac0e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:48:33Z), 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/QZYHM2417325.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7f0c589fbe7c8a6a1bb17d49c0959ff685201f5d47f3eb0d754961168021da. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZYHM2372486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282f655c0dfec35a98e3f32f3ea66ab0fcb60858ca3f24c673ece79dbabe3a44. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/VNA2F2300964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d75692979ea28f6e997147b1dffea8080e5ad698cca7eded2686e33b12b19e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZYHM2373144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ff5c1e08485edd09c8851fae7f9dcf251c0db7a7b60f1a6ad0297af966b9f8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/VNA2F2401478.
Vì Người Không Xứng Đáng Remix (Deep House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f7b99d61c9547842427c10ab4535448ab017c0d771f109e204d57ceffee604. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZYHM2415887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7546730d8b0b1b51c814af2ed5788a89a1731fc75d36e5000748e512be810cd. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZYHM2415828.