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 0x47fe8c3659fd128d0b060a46080502c553d7a286409ee48198f57a55da7f7c82. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d20ee75-b28e-4fa1-b8e0-a485e6ac6131.json and https://artists.proofprofile.net/proofs/artist/0d20ee75-b28e-4fa1-b8e0-a485e6ac6131.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Khổ Thân (feat. TVK & KaiSoul) [Remix Version]
Khổ Thân (feat. TVK & KaiSoul) - Remix Version
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 0xa6f72bae32379bcef662a8da922941295e52a7ad7527eff0f62cc94db96e3faf. 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/VNA0M1938151.
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 0x4ced6305edcac86623d46f3f909547042a69642b97b65e972ecd8eb0fb18340f. 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/DGA072386811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9feeed24c3dc1a263be1701dbe7cb422432a3873a463e61f034d56825e8eb852. 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/DGA072386813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede81115b7522aa22fc49cf14ea3d0855a4bbf4df29f02e2236c06d7ef966a94. 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/DGA072386814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d15baf71d3ec18c55dba65cdc9d57e48792a2654c071b70ec483b2f83ba100. 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/DGA072386818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a34b1f0bd95d42ba85449a1c9ac99693ec1347496f28566eb1662133a80c3c. 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/DGA072386819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635697488aed7dd9a44fac58f006e54e707cafdd9df1d8cbbeb0554678f112d9. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DGA072386820.
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 0xfa9d11b8168bffcda73e4404dd839e5c1389a3544b8cba3078f8dc2dec176315. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DGA072386821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9f22bddb3361b3087266437e9b0c3c1cf626ebf441409b7e578c52b63cc4a2. 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/DGA072386825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1487de7a6c4285bac1cebcb79f750f1512a243621910179281dc96ad674bf7cb. 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/DGA072386827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18a69649df60e9835868471dfc116750af792d2eb9b12a35a11fbb8cefec47f. 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/DGA072386828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3885a7db50dd9705d163cad49fa61aee06c7cafb7762b55a96bcc9d9975fbfc6. 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/DGA072386829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a040886ebad49cb761d584ed4665a1963810071097643ca8c0c48f62a7d3353. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DGA072386824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5a17231f717fa603832fea23565346a41f43978a28a0266ded4e350096da51. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DGA072386826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4d837f3c9a875c0658e9932ccb4de0d04903a5e9df670825ac39f42b1ac084. 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/DGA072386613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4440f2db20c70fbf95680a0b2ff805d3b7ae244670d3e0f724047c555b0b0e18. 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/DGA072386616.
Tiếng Dương Cầm Trong Đêm - Rap Love Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d5da3ce1f20d5b65f339b453941e4c3ceccdd716c3874cfb0f33af40dddce0. 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/DGA072386617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c338876e747f5655419e401d5e09137092602651d9317085bfcc3536827d27. 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/DGA072386618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bb9a15f7450003f7595e73316ae85db8060086f18311204446aba32a8556a0. 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/DGA072386620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d86729dc7ac71ec483de325eb9173d20177db2ba1e1aa8ad40f4adfa897339b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DGA072386614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc589331257ae5d3e269209383a74918b1609712ebf98046873de960f2522366. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DGA072386615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2a5ea07c779929aee37d51d3aad1a0f372e38f4fa9c34dd760e3fcaf9eead3. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DGA072386619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ed608448eb8ce701f1b35c5ec9b13a27f80cfe94c49a1f50c74c9c7775a6d8. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DGA072386621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaceef38cc081fcd9ae841a69a5c1db911ce8a1d182d8a7139393fefe584e41e8. 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/BGA471828911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd7771f30301beef8de9eacc14f956a401cc3a4f37ed0d352e639dac5c7b7c8. 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/BGA471828916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981e7c303add11175edfd02782cf187a93e267acd338ccec5e258bcc70e75e70. 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/US38Y2511386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988560412ad104d3264e47916e39522c4506b522247acfb62218aa1b72a959ed. 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/US38Y2508644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8803a7a14f19fa6a08150a223f2913d2d9611df865cf33d5e9185ce70a82d30f. 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/US38Y2434645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc2cafb7f05cea4eb85d9d2b958d645fa8c4906038255aa1112b4f60fb138e8. 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/QZYHM2427372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adb3c74db8233c9152c7257b1a2e6c81366bb505e4fcf4e65228978fc3564bd. 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/ARC572405190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe682ae9169c1f02e512c966b1436d4df0d6d83defdb4d1836be71e793d8e9319. 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/QZYHM2413518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01da93afb42a909f085daf7d69129aa47f4983e18b77bc2daa0dfe20860c567d. 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/QZYHM2413513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f55dadeb957c422efb5e67f3b8dba801138dd743eaf4272b5dce73a1ec0f8aa. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QZYHM2364840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358aea7d3b0bbb10240aa60861ef09ba5b93925114eb6972da83bbc22351a0a4. 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/VNA1M2277495.