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 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 0xe2e553106eb4446d5a3029bb17ea5660abf2309824e2f9d78811737d1fcb40a9. 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/c76bd7a6-a6bd-40ae-a76f-8b45e5d25ffa.json and https://artists.proofprofile.net/proofs/artist/c76bd7a6-a6bd-40ae-a76f-8b45e5d25ffa.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 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 0x246c47ca214b04810a9725a4ec19cd04918ca357086fe683bd96a6782e88c3c5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/FR2X42175213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2217b04c62bb5c169e338e541e8606a5cb3d4672082e6ff7bdb826676f538fe. 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/DGA052072410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56840f06af62fd3a2a3cbe218e120c4801d1ae620fa21f40b0ef4323b266236. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DGA052072411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02db13c9d5519295ac4ee15d2c5ad2720a2b7ceec50b57255a4a556f62e2c0bf. 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/DGA052072412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54182ca3a5d9eaa34e230fe0ad6c2bc2425f21d2a1fe8816387c20dce6a242cb. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/FR2X42159594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e2e98ebd5452360f366b6f77170b44babcaa4dc447265c70b497bea7277934. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/DGA052076860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4315e8165e580139f0aa9d72451bbfee21d2dad3736904c67f58d4d1203e6ceb. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FR2X42126942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd911f2bfbeaf01600073e6c87cb426ab4c9b26b285afe196953c391afbc5f9f0. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/DGA052085115.
Shake the Rhythm (From "Chiến Dịch Chống Ế") [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd377f61f5258796eb70d408bc46bec3a34e1a7fa45a30bed4e61566cd523b1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR2X42151941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6786fe5711c2ee58ab010418e502ac1a215b77e7383a15d8d56a07647cb13f88. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR2X42133621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f51836310d82afac13b5990fbcbab4e855191a0c754db844f4ee033f57f7e3a. 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/FRX872191042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf2f17b294f1d842f441bd62a0013f8f4bfb4926073d3e00674acc9445bdb2f. 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/FR2X42129772.
I Love You Like A Pepsi (Music from Pepsi CF)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f957951f955c02ece26d9f600e82b355ddc07d0b8c14d5c5a39c10e00f4f301. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FR2X42151942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89e15e89f1c96ad279fc91be21d834c3e1f5598770a8348b7a82825445c10f1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SGUM71800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5e5ab419c09f892153c1a6132144bffe1594fbc557836e1a58ebef95d13111. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SGUM71800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49a9adc9773898f624916194e4f45c6fc11f6c658cb20fe81836f4d6966eb6e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/SGUM71800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a685a9a00e91ba7efd7008309d2f3808f4062984fc173235bcbd5d90e20bd3. 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/SGUM71800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f6dac66739c1d18e231f74eac410d069898563ab8f7978d69c265ae095865e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/SGUM71800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083289a4609c206febcdff49a05a6b57957ea83036a7f478209da38f8365b82d. 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/FR59R2032119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a6cd928ab47b11b20df86099f624b030e407b0f3f18e5c752301884ee66607. 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/FR59R2272314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db09e4f7f0428637a522da7b7d10d522bfdd10eab5ce3187c83eea888b850a6. 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/FRX872229244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff248ba8f5f7f480cce2713e6e9f653332fc6ec1b5136c7cff9c6449d5bbc76. 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/FR10S2520746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1065076c8b498711bf369466747dc622a9ded2dfcc4d0f736f790ae02f817885. 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/FR10S2520747.
Người Ôm Pháo Hoa - Stage Studio Version '25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9592fb841920db679191c33ea75b8983f999f7f23de2d7cdc7843ec662524712. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FR10S2520748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee90dfdf8cbf56834529bc9f94be6adeafb48f80344251dc7854486de632080. 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/FR10S2520749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff24f6f5e3b39f3a150f492db022268fa784613b54072664fcb7b89f43c18b6. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/FR10S2520750.
Đôi Mi Em Đang U Sầu - Stage Studio Version '25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fa9bbdfbf966d2e0a9119ffd7fbd56c9d98b01512036894f01d7da374863e2. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/FR10S2520751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a64d22f8432a7c990eb8b960399681412876e7572c67531ee8a78f4dd205b1d. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FR10S2520752.
Shake The Rhythm - Stage Studio Version '25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c94c8bfbc30c0b14daf6c2f5f4abc6dba2915fbb1ccb7518a405ee71e6f5ced. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FR10S2520753.
Chớ Nên Về Sớm - Stage Studio Version '25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1216c4b235fe04d7dc5aa6ee6a984c00a904db523bf99d82fa3b1336bacedc5. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FR10S2520754.
ĐÔI MI EM ĐANG U SẦU (Gold Mk Remix Instrumental)
Bụi Bay Vào Mắt (Biển Của Hy Vọng 2022) [feat. Đông Nhi]
Một Chiều Ngược Gió (Hồi 2 Cù Lao Mái Nhà) [Biển Của Hy Vọng] [Tập 12]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f5fb2f87e48496547d4a072997d21b0d6206d3465f6b3e6f73bb9da3d1a06f. 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/VNA0M1930009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3572ba470948502fd7222f2cbad0799a91d2eb4e17105ca89cd12aa4c16d82a7. 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/FR59R2026902.
Gala Nhạc Việt: GreaTET - Thập Kỷ Nhạc Xuân
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b08b77601e087508dd21f24ba34268f8c9fc1bf7709a77339cc223d0c4a15d. 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/DGA092208002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846fb96077857fe69c6deda3998b0ddb3b258a5e1bc7119d43dab26b87d277f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR10S2315969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67a637ea77eec799be707ec408415534f9f7d15c8412fc8b235ac8c9421e41f. 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/DGA0R2328173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9152fe4e71c9213f1210bf439c791201644b7ce51970dca8d7617e9af3d596f. 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/FRX282113121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8111ac5df93a231ae647dd2380252147eac4153d4e50ee479fa506b1cf1077b5. 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/FR10S2510082.
Gala Nhạc Việt 5: Xuân Đất Việt, Tết Quê Hương
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f40c407282957fe97e2e1251dce91cdcb701e0c79bb5370a04c3baac2cfe63. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX282113064.