Quang Lê (born 24 January 1979) is one of the highest-selling Vietnamese-American recording artists, renowned for his unique covers of many traditional Vietnamese songs created and written before, dur
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 0x25adfd72c056dfd5d3a582815a9b5205ad35b33a3559da9b1170eb17d8708067. 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/7dd0251c-2335-4993-98d8-46b714f6d289.json and https://artists.proofprofile.net/proofs/artist/7dd0251c-2335-4993-98d8-46b714f6d289.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 0x2eb4e26cabffe520ed82791b10e7faac1f90c99b8f557bafbd5bf8e26b646a08. 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/QM9SX1512997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea7f1964893061af3137c9c711f42dd27e5f3f70e824682e250533f4b105cbb. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QM4TW2091734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22884fe09432513a8b18c0e3035adf594e36031330e8d0b38dba2c0369da96a2. 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/QM4TW2091735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86762ac4207fa7bcf69b916c6fe5ca3402ed7d8de661d204d61d7bb5063b113. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QM4TW2091736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c61bf4e1a21b35323da8659a1d4cf1b90890b29edbe098a5f004dcf38cff14b. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QM4TW2091745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d94752dfd03b80b1f91e048357527081a503651d9498f3bb89db87e6fc3258. 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/QM4TW2091272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd627a8101473709d448213ca1b438e47489597e3a2103447de0fed9d4d49569. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:28:13Z), 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/QM4TW2091276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53c8224f48826ea2d3bcd90f26f89af86887be7ebbc8b32fae355adedfb67a5. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM4TW2091278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d8f343ab5c67070c8416599f4a86821726638c45f4fc6ff24e03a83a4454ff. 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/QM4TW2091281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf341e144b25b9aa04aa075113ae53e6f0b8b787b210303e8165e8af1ff0d4d7. 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/QM4TW2090993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6d12ce6ef28b90f7c8fa8028c8e30f318b11db61f2e5a6289d06eb9338a21b. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QMBZ91958581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0456c545f7db59214a437a3a0358e9788bd70feeedf604d0b103e3a57efebe. 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/QMBZ91958584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ed15bd461fd63b1c05cb10b871cad6a51ee57e8f39577253703409d9d19c82. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMBZ91958585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44b04d31de22d08c3f46b7bfae91961b949e2a448d7a4ae0b849b69f93b969d. 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/QMBZ91958587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bac53fd0008a0a492a8e75a84a3e8c244233a9334c700ae68115e6b3cd528e. 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/QM48F1148702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39dfaf41160e763bc6a4d3f0d9e76e0d814a2f75e263add6d1100ca0f548d5e. 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/QM4TX2471870.
Quang Le - Khong phai tai chung minh (2012)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc93bd0e37344e5586a34665539249fdf599454bcc9b03519c5956596b79be81. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:28:55Z), 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/QMBZ91913456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aacae9f50ca17983a23379cca3c275865a6e4bcec4210303b686a0c41e4c08. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:28:17Z), 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/QMBZ91913458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0903c37a33a0ee5af7405c3bc556418ec9cdb1b6da19ae99a748547cddce85c. 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/QMBZ91913460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d3beaca7fc4478a394d5e8afbffb2396b486d761a36eed6aeb2277c722970c. 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/QMBZ91913463.
Tuyển Tập Các Bài Hát Hay Nhất Của Quang Lê
Tuyen Tap Nhung Bai Hat Hay Nhat Cua Quang Le
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2ca29088d883bd947c167a6b62d61846d5947cb8c1f5f855ef7f76c6ad7680. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/VNA0F1781483.
Tam Su Nguoi Linh Tre (Tinh Khuc Tran Thien Thanh)
Ngủ Bên Chân Mẹ (Liveshow Hát Trên Quê Hương)
Chỉ Có Bạn Bè Thôi (Liveshow Hát Trên Quê Hương)
Thương Hoài Ngàn Năm (Liveshow Hát Trên Quê Hương)
Yêu Mãi Ngàn Năm (Liveshow Hát Trên Quê Hương)
Nỗi Lòng Người Tha Hương (Liveshow Hát Trên Quê Hương)
Liên Khúc: Mẹ Tôi, Cảm Ơn Mẹ (Liveshow Hát Trên Quê Hương)
Cuối Cùng Cho Một Tình Yêu (Liveshow Hát Trên Quê Hương)
Được Tin Em Lấy Chồng (Liveshow Hát Trên Quê Hương)
Liên Khúc: Trộm Nhìn Nhau - Ai Khổ Vì Ai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf35b7e2b66803c3142cf5a736db5e783e348efb0cae62deff5820a06a495974. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QM6N22297567.
Liên Khúc Mưa Nửa Đêm - Ai Cho Tôi Tình Yêu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1697ad0fe7d17c3290fe2ec2dee4c0cb4a286c7c46ed519c74a96b3cc2989405. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:08Z), 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/QM6N22297569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad110c6a02ddfd202fb4af065a2b0779646bdd49793e5597e4112573a2c3e6e. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM6N22297570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e75a48c2c109964d853feace6dc89af2df43a4651d84cb3157b6bb5dea5505. 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/QM6P42204734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278571e65089112aca6d7cce115bf8e0f7741233065dba4db1e544419a3c4210. 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/QM6P42205597.
Liên Khúc Sao Chưa Thấy Hồi Âm - Chuyện Buồn Đêm Mưa (Xuân Phát Tài 9 - Live)
Vó Ngựa Trên Đồi Cỏ Non (Xuân Phát Tài 13)
Câu Chuyện Cuối Năm (Beat, Xuân Phát Tài 13)
Vó Ngựa Trên Đồi Cỏ Non (Beat, Xuân Phát Tài 13)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21d329741e22fb5073204277766a5d00b8eb4f4934b794da63083c89ae53a73. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:20:09Z), 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/VNA1M2278694.
LK Đôi Mắt Người Xưa - Cô Hàng Xóm (Xuân Phát Tài 14)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9fdc2c5de44dc8994f593e6809f5193ddaa42f549e742db5a08bd75261a939. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/VNA0F2409743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d13ed5b910887b9c5c6971002caa86e67e886f217cfce11bb9a6cda9ef48241. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:08:46Z), 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/VNA0F2409745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f94998c3250e89f996f948d7b4480681934fc0b3d5324dce58caaf9e103a967. 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/VNA0F2409721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9049ae5555139c0dfa7cfea96a52485473b865d1dcf9381c60e8395e6fab0933. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QM48F2505601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420d212c7c9e7094ec5bcbb4d19f3af3b3aa7bccd8deea9f3442c0309d17ed60. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QM48F2505602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119ca6ac0707fef7bde3579ac77d60997872cdea6cbd22e3bfce6ae44f148e0b. 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/QM48F2505603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2629cb09c3104eec7e063cdcd41ebb5f756d5c2b9eec38b5849d19742af45a0f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:24:00Z), 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/QM48F2505604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4d33fdee47da72b25b752199d0d011fc2535f14cb467272b87ff49fb50c613. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QM48F2505605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b81639aa1b7b94659ac183fab92d9b17be0cc7d13138ef459e04d952fd84db6. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QM48F2505606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15eb677d4da17e9426b3053ca29b5d21a1f9c4e10b3d600533a52b8ba4d1b57b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:39:30Z), 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/QM48F2505608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b522a4019251eeb16df721039c040212e13a919df95eaf9128a211e53b89c3. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/VNA0F2312078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9002dadfe8f6a4b99ffc014346663949f32433c72b502c41ade98e65c58685b. 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/VNA0F2312083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752ac90621cf20043ddcf0a2adc89f483a996ad1ae7f7781a8ba606cf39d50a5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/VNA0F2312067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507d579c7d904bb8c4efdc10254e72b7cc846e84cf5958857e127ce7a1b71d2b. 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/QM4TW2091109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39134bca6db7627acb4a1a1531edba6f7b39b55d66193118f4dcbd54f36e14a. 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/QM4TW2090841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6bd056a383e26d63ba06ee387ff3c468c2a5c0245b6fcf49d69fa350511874. 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/QM48F0842805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd377850c25eff758cea50810692d529343ad4f996f4ba74ed5cc3bf4809b367. 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/QM4TW2091474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a772298fc7dcb20508559c612ef07e2d2ca6b7eedaada01d8d3a2a517e2727. 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/QM4TW2090817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa369c906c89fdea77476e5d50e28beee407dbf7be151305a0ca8b87a5401621. 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/QM48F1454804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf694b249794bc5e3038cf55303b413f1bc7f0e533bed68e653e2dd353f55753c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/VNA0F2312096.
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 0x03aac8a33f6f24bbf30e8f260455c96f19d79153f1545dd924e6926c2d4c106f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/VNA0F2312080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ca87c9b99424a415739a7fad90dd437ca4538a1373f324d66b1d5f3181bfbd. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/VNA0F2312064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0c19167185a857e6993a66f781377d8d9790c7f51c1cd6ef87d330d82eb606. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/VNA0F2312050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd919104a123e6b0e717ab15b8930bf2a14925c9e44890e73618ff5645d14546. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/VNA0F2312053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aedaff8c197978e0c53b16f88f52f940120956e99ac8936ed255d57fe40e480. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM48F0741402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ba2112a2b629abacf5079a5b2cdab2abf2ed4d69eead20634b1f86b6a17f59. 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/VNA0M1842192.