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 0xd8fb137010a3445a38d3e9ea4eaab884bf87fc1adae445e76d80a9287fde27b0. 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/aa848ad8-d8e6-4aaa-ac20-176289fdc404.json and https://artists.proofprofile.net/proofs/artist/aa848ad8-d8e6-4aaa-ac20-176289fdc404.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 0x17ff054c04f729657d69d790aef968b404f7bf89fd5f91fcbe0b16e462c3205d. 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/FR2X42263355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bb34b2e5f4180fd98d08a289082f52c585c27ffd52dfc274239e5b2c6fface. 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/HKG732276235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f12c8366d44b80a6b0df7621aefb1955f3926164b7ecda5b9f9dd7c43bbc6bc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKJ962215405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299153effbce33b99a5cfef138b7891a7f5cead74dad6fb171fce3d0ac2a048e. 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/HKG731713339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5551c001379683072c016c0929e49b23a949c0e36afbe552de41cdd5162252d1. 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/FR96X2260902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41df627f1bbcc7ce52f3e50e77d6e7f3ffa7368b39be1b5a03235d179dc7e1f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CNZ632300321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2399891f8d76965458e6779eb75a8a7c79c4850d27221b0c42d3e997d3744cae. 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/FRX762130596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7569c92cbe314bec76e0f3cf6515abc341a0a7c00d1aaa92d44c239e5af84b4e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HKG731874548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e58105d13874c5a695688dc1131ba277d6b33c4a002eddd5bd22dced948e81. 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/HKG732375546.
千万种心动 (《是亲密的你》影视剧插曲)
千万种心动 - 《是亲密的你》影视剧插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796f7c63a61971a0ff47311a9158ae88e0e70a6172dde2675323a36c0deeeda3. 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/DGA062372510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4b00feb09bb8c095273026d8a4957fa25f16d7b0ef931b6bc7c6055ba17d72. 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/HKG732332464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf55a2bfa01d302145fa03b60c407894aefa2bf43113d648de6c57c1b9e35e9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CNZ632300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b56d6628ac39c64ba57c4a8866a27b2d441a94a595e8e92157a7a4bfd5c3e2b. 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/DGA072299520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e17f62b45e840954cf7923b3dd48d0d93b7b0b628db2f59a585ecfc576085fd. 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/HKG731600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefbbc3eba1e045cc99970ab116570cf51a05b46455a11dcb41526815a6b7bc3. 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/CNZ632201275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d066f7b196dfcbe03e9776052ba798712d1a7d6f52d1993559b232e9f5af07. 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/CNZ632201284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdac0c1080f0e8dfb32ac7107e8d7e5326dbe9a072c3dc24081eca88aca4b68. 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/HKG732269044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a4274acefa8baae008464a9fb9eef4f63589d315e72e5c794a596f5559a8ab. 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/HKG732207218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367212df3e382863ae3c23417f12c209c95bb77cf2a69023731c7062081e1a07. 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/HKG732207219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b44380f213f96c5ddce8e1f9a7cb369a25069afaa77c60498ac76642519c00. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/HKG731733660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53804830548aeb59af6c0bf88489591c321e2a8cf9b68ff34030ecdff6c5cf36. 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/HKG731713340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b04954974b0af6823572de96753e24ec776ab5d0a45b8b726878d67a877a6e6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKG732203382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b7e6403fbcb66f51a54d187157ae3d5fb82e8983d7ac5c56b75fc322611abf. 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/HKG731622140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45be7a32976c82099bf2419519ff36efad902c72725e407b12f5400872f80acf. 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/CNZ632101107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b445476d1527d0a71afedb84c87d2c1782fa0680a549b53af7ed7cf649371a. 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/CNZ632101104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3c8bc535b63e7a43797aeee097e93e99d637e0f309a1e1edfc94a1d15721e1. 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/FRX872174809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82101be9e437b7f7ee8138895bf59a3ecc184f02a1650acbb06798d40dc4150b. 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/FRX452154676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f2cbf70000d6cb9c139a6b2f2646b96908893185a09508036778f987c7cbfa. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/FRX452154677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbabf296fe8bbdbff4320cc5968138862c8f31e13d088e1d01ff16c8b842cb11. 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/FRX452154678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5765a5f955e103c181124502a8fd93a628d08d0a665e4640853542be9a82b782. 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/HKG732153850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a422b78e5c683efa99c22c7e90c204a5897e6ee79c65ec98738a1dead554cc. 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/FRX202147022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7d2e063065424ac60a2d3af5098250177ebf956bc17f907314f64aa98c9b85. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HKG732113242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617012b2c8997a8bcdbe7b2bb579be0fd8847f46cc8aa806dd63c6e7c96f2545. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/CNZ632100509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509284144034078803052bae7329a9fbef500503009b3eafc3551ab94c468d0f. 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/HKG732132593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec50f9145226ef7f72d563ac6166a261055ed654f5846f0f7a48c873dfe6654. 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/FR59R2134944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c282f344262522c722e48bdf24fe14dfb7c6d9a956436b86997d51ddc60ea0. 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/FR2X42132856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75c1a4a5ff48c9fd253eef62186f4c9ac5002a29b97ac9d51ca724c696af3a7. 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/DGA072155196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11154b51223cb2a47bb3c68d025fca0b6344d442fa4f05ebe15a5b74596f3c7d. 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/FR10S2109977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f929f388b7864d27ba5d947a27fc52bca47e927b53d31d169e91c8f602df2e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX282097677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573038d452bf7b68069440bee8452124a3af74f1369bf5a2aaeab34a329d5834. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKG732317816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cff6c340e3851698288cb83e652433f02bac9372820dbbd5918dd723b8b8be1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKG732317791.