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 0x8950fd36eef4c55111188e44d44b5193c1a2b9f2d580de06ce4e743138490b3e. 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/1a7d1794-0c1c-4710-9a60-eed1c1e89c04.json and https://artists.proofprofile.net/proofs/artist/1a7d1794-0c1c-4710-9a60-eed1c1e89c04.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 0x7625a4b0640ab8cc9557e1d3a4d80e7e2113496defb586c33d589d794fed7b88. 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/SGUM72200547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40014912e61dd43f548b5b7b2d99a30a1cad36e9c50fe72723b17b0f3be1e5e. 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/VNR011022984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b85ebacc8266e8b78626826116bff09d91e3a502bf8d5189fb530f161011833. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMDA71585580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634d073b55b93d06933e39d8a9c81f3ff9e53a6dee916e3869338e60def0f295. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DGA082308572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439e3f59c4cc9d432f951ed6f3d59b677313c58ed7f364c188b87a3c368e606f. 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/DGA082347348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6071cbab4ac2b70bb977fa850c2b4e90a4d8fd8e0f0b14b11de1719f7ecb70a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DGA082346034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c45fcadc6a4965b5d5a2d32a65022d8bee3c19d299e357f647e5be24afee5a3. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/DGA082308592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfca124bc20ab95631a413ca679838882f0683accfdbc5624022116f44a535f7. 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/DGA092369926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a44bb815777b294b57a87a8efee947db79319c43d8cb77dea5f25982711b01. 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/DGA092369928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b888d74cbb1c10a5970b17323876fb40308407686724d4cd22bc043141bd8d. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/VNR011023084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91a785d88b83aa6a30c18d895e94dd2d4037384bc9851e51454512f9892336b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMDA72295594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa26b3e27633f2fb80c1647c1c526291855314135a95486be05c08f0ac48224a. 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/VNA0M1908074.
ON THE WAY HOME (Âm nhạc chữa lành xoa dịu tâm hồn)
Nhạc Thiếu Nhi - P1: Gia Đình Nhỏ - Hạnh Phúc To
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70258458da6c41842a7ce2d47e599b68dc1b9859c114714ecef4a3fec6c9a3c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/DGA0M2389216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8fb07f1641b7ca66ce866745a9e535ebd44871bae02f8e40f9fc685462210c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DGA0M2389217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ecb298a40b40d61e242be781129b24af0f84f6ca8cd49d3c11c111ad9d750a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DGA0M2389218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64256b867456905bbe7969b56735470709812857179e01e2627edcea93e775b0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA0M2389221.
Nhạc Thiếu Nhi - P2: Bố Ơi Kể Chuyện Con Nghe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af4d481f4e833e27a8eb3db81fd8b0e8cc4a612db314b4018b4665bd1d0b574. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:23:27Z), 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/DGA0Q2332507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9241b163d8807edb8fb44c830c009b1ec157be647e5c3286dafb7c71d3c3e8. 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/DGA0Q2344999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498eefe9ae3e217a526f91773d82d3287180710e3c26022b03228ae2e60511b7. 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/DGA0P2325878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe536875e688110766caee1d267f261a187c5fb9f50b3987f5ef0dbde22d4a491. 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/DGA0Q2307500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7adef95249259285a6b5d0a420d0eda3b71ad0ac3ed320606e37b0d037a7f3. 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/DGA0Q2307508.
Cây Thông Giáng Sinh Đẹp Nhất (Lofi Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5712b08b5ff4bd5716dcabed87a7104775484cce4fece1265c7105d9aa61828. 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/DGA0L2468224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0add9bf46b2b19a44968fbfd54f209bdfefc56a5333175fd65143f752c3094. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:00:14Z), 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/DGA0L2473071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa575c2e626871f8460838900cdeebbb694a6bcb35298581d69d49c9eba02c9b9. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DGA0L2473073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f3760bb7a8b1d89fb360c5fef115a27d4a1e3523cc45aeed37f3475d1b01ea. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:48Z), 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/DGA0Q2429640.
Nhạc Thiếu Nhi - P13: Mỉm Cười Đến Trường
Viết Tiếp Câu Chuyện Hòa Bình (Đức Tư Remix)
Biển, Mặt Đất Và Bầu Trời (Trung Ngon Remix)
Bữa Tối Một Mình (From "Gia Vị Tình Thâm")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32fc7058da58558e60bb6db063f24ccf881af74fb6dce8eab57261fff453b15. 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/FR2X42552121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a3d2bcf7d59790cded68670a2ad8b3114da94014cd3ed1c70efab9d98ceb6f. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/FR59R2598520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88754eb98bee6909dd6a9df22de8f8f85f985ae45a8d05f71d11f4a9d7f68fe4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:17:27Z), 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/FR59R2598523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55adc6ade1a0bab7c7abab792642f5d9e0ee1d7bf0dff46c3d61b8b42ea7c45. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR59R2598517.
Nhạc Không Lời Thế Hệ 8x 9x ,Vol . 3 (Guitar)
Nhạc Thiếu Nhi Viết Tiếp Câu Chuyện Hòa Bình, Vol.15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7e90fe4eab52985b8f1786773227d8b21ce8d14bc5be01fc79703ca7c101c8. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/FR59R2587332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc41119d3e1c37cb42370af9aee9cc69d464d9f0d9ba578a7a576cb46842933. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/FRX202549353.
Viết Tiếp Câu Chuyện Hòa Bình (Piano Version)
Viết Tiếp Câu Chuyện Hòa Bình (Violin Version)
Viết Tiếp Câu Chuyện Hòa Bình (Japanese Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a0fa6f03259701bfa55114eb5e8d66886a6dee784bbb038d2eb68b335acc85. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:56:57Z), 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/US38Y2542543.
Write On The Story Of Peace (Viết Tiếp Câu Chuyện Hòa Bình)
Viết Tiếp Câu Chuyện Hòa Bình (Tiếng Nhật - Nga - Anh - Việt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708bda54267d399306fc6f36d4151d4ca58d7a4e6f8e605039f6e1e11b26cd68. 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/VNA1M2404883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737b5a5b5a8d240c59a8aaafe1b00dd8215a8c988632ec45ffe6ac817c98616e. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:40Z), 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/VNA1M2404885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6561ed84e1f3ce2ca39a08d9265d5017b0ffdf0a74e36a310373f800262a4952. 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/VNA1M2404888.
A Lil Family, An Utter Joy (Gia Đình Nhỏ Hạnh Phúc)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05787420b41a797a9ee786ea2e49051b7c0e05dac9a7de257a983b4a105ec043. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRX872567495.