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 0xbc11d903323b926fff525319fdf7a358f399013097a5e90abde9797a35755e0d. 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/ae12eb39-e821-4997-96d6-58de24432cf7.json and https://artists.proofprofile.net/proofs/artist/ae12eb39-e821-4997-96d6-58de24432cf7.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 0x086290018665eb7f667241f2cf8818620dde4ecff073cdd123034d6d85fcee40. 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/FR96X1982203.
Trong Trí Nhớ Của Anh (Live Acoustic Remake)
Trong Trí Nhớ Của Anh - Live Acoustic Remake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691ee1361f2a64ddbf757aa1b07b04a7d5e9ebf40025bea0f3417fedfaf6bf2d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:05:28Z), 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/FRX202185033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd763a27eae3eceeef11d1d60e0838070cc263d16cc0143cc2e1adbc750c466. 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/FRX282123147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5895069625e1f5bec90993c725a861707b646766b7b6c46438ebec1517d7d841. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:39Z), 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/FRX872188005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a95fc4448416767c05c394896db753a692798b1a213830fb33b3daeb15e7927. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/VNA0M1927070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98df907f929ca9c3d4031bbdfa06e1a2af07961aea330fe7d9805e0697370de. 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/VNA0M1927071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a3da74ba1dfd480d063eca8f63886fc207e246007b9a62122fdddf1cf0180b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/VNA0M1927072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc4747923a28075a6d93f6079a4fc4ffb1941137c57eaebd6418c59e14bb1d8. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:59:23Z), 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/VNA0M1927073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc0ed2cd9c8755171c8f3da49126ada664852c505265ecff91366a8c7ec48a9. 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/DGA052380307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7665b62e16bb46c3bbb9f19de617d36c0ce2441d6b0ba9752da7d684bd016503. 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/DGA052380308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f9ae4dee6ad324d52a9f4fb80b0569e89f33dacecc613bb2e9785ee1d71d2f. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/DGA052305891.
Xin Lỗi Anh (Live At Soul Of The Forest)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5980e24ecebb8ea1a35810c99ea426abf4f0fe6aa334a5ccdb191311c3ed926. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:50Z), 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/DGA052380309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a49683dfb174d84b58e6ba74c8e42707d3e308065964a15fa008e491df1be6f. 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/DGA062348998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeaf9ee1cdb6c3bf4fc091042216cea295e5dfe93597769760ff535a159563d8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/DGA062348997.
Mashup nếu ngày ấy một người đi xa - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014747ad07590f42e490bed18df912131fea85fa5b770d8c75c959ff6db6cd04. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:09:29Z), 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/DGA062348999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0083abae53e116d6802a65376096101b687b3022d8d7b5e4e65194b6d31a4cf4. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:28:37Z), 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/DGA062349000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3d71066dffb3bcbb34b15adfd1aa970eadf66cae619096749518389575cccf. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/DGA062349001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca2104476286f3accb1edc146ecdc2397ce2a79268d12865f6af17c476b52a0. 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/DGA0P2458245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3fd18ae3750f832b5d05ffbc749138554955224a928ed8d576d98637dfce16. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/DGA0P2458247.
Mashup Lời Tạm Biệt Chưa Nói & HongKong1 & Bất Lực (Live At "The Record 4")
Mashup Lời Tạm Biệt Chưa Nói & HongKong1 & Bất Lực - Live At "The Record 4"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f4da0b614ebcb6a1f59ddf6332a18a233db3be7fcc5c1b2d72502d6969feea. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/DGA0R2437089.
THE RECORDS 4 - NGAY LÚC NÀY - PRIVATE SHOW (Live At "The Records 4")
Liên khúc: Anh Đưa Em Đi - Ngày Một Người Đi Xa - Live At "The Records 4"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038c471f1442713c480b033f8aceb20aa733d3b6b7909e6e7a645c1c9ec335ac. 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/DGA0R2494179.
Liên khúc: Em Đi Đâu - Nơi Ấy - Live At "The Records 4"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f69318a8cc7fddb1bff32f9f63c06c31e0a25bdb0a6f408f78c8c1a1d90d32e. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/DGA0R2494180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f4da0b614ebcb6a1f59ddf6332a18a233db3be7fcc5c1b2d72502d6969feea. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DGA0R2437089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca2104476286f3accb1edc146ecdc2397ce2a79268d12865f6af17c476b52a0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA0P2458245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56c8321aa9299452b408f0d6497fa0014f6b3605e7b1c0bd88c32244e9693c6. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DGA0R2494182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b4e2188a5ed0312d265bf8ff5274b499268fb7ef1274482823dea0bb5d7abc. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DGA052566265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da823a37dc47a56e4c3e043c1d51c003ebd74a97c818397a04d4283c2e62928. 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/VNA0R2400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12ee82044279fd659ea88fba48c93b71589504d5dbb21e4be4ce8d986d621d3. 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/VNA2F2400557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165a50f4ed4f8387f74e915e27e8af9feabc756a0bf3227a030c0d164c98d9c0. 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/VNA2F2400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa3363c4b5ff39c39ea041e5d3e0efde35312cd16234ebf7837b5226ead8b66. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/FR10S2267476.
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