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 0xe6a9e12e62d7ebf173166baf53271de2f763e21ce9c0a39e8c4d63068565296e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b92f2a0c-7813-4db9-af39-cf1f9ce1aac9.json and https://artists.proofprofile.net/proofs/artist/b92f2a0c-7813-4db9-af39-cf1f9ce1aac9.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 0x15a3d7ccf711728af346d21ce4e1283f679b438918f4e151dda618a829b9a1fc. 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/QMDA62262448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309f09687952e8b4fc54166a540637f9192939ce1b6c15b11d52729e5a8f5106. 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/GBKPL2201136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6a8107128779b948e589ddef2db1f889eb549bb6dcd528f70c0395755889f4. 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/QMDA62262450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfb586f266d90fbe0133628e51e4ff2f201b544c39a191351974b066e63acbf. 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/QMDA62262451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd744868191658b92a2398c7ff9f345af3c35b9440a16e057efb19fba899337. 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/QMDA62262452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac84057dea4fe0972d09ea281f593e7f450e8819d533b7d13f238acd06120bc. 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/QMDA62262453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc59a658d4f09f3dcbae4b0fe7beb7c546b0a1524fdeecc40b6f268d50ced85. 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/QMDA62262449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab74bf8270270f87a23a95af679ba339c7df54d06ec0eee309b5a87ecc9f2d27. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZDA41893987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0140d41cd86038825ef90c715a38dff928b0c0f01e1b3c1dbf62379cf39b0a. 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/QZDA41893990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc60eaaddbde1ce612be0ab85519931f908cf9bef8793e1ea503c7a8cb78a0e. 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/SGB502390536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e8aa4390443996b87c9b121739adb24733fcbaa301da5b6cbaa853f37e9e79. 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/SGB502381889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c6aba98d7fea4d106af9753ab1f15a4cf2961a4de77b3ecf4cf7064e9ebdd2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SGB502390117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035ef8bb2599eb96e6626aa6cd1cf32bfeba9dfa3d0aaece0433205382f0bba7. 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/SGB502390537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a64578beab81fc0302790ed3e34a53c4b1f3d18a0969d275b746f9c99a293bc. 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/SGB502390539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13fc3fe535340d885a903dfa1f2e33d34384d4058610ea05304e28c5ef5ffcd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SGB502390538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c6aba98d7fea4d106af9753ab1f15a4cf2961a4de77b3ecf4cf7064e9ebdd2. 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/SGB502390117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e8aa4390443996b87c9b121739adb24733fcbaa301da5b6cbaa853f37e9e79. 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/SGB502381889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8ef03a06587452767d62abd0de96742849ce58e30d594b69259320b0b299a4. 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/GBKPL2206175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309f09687952e8b4fc54166a540637f9192939ce1b6c15b11d52729e5a8f5106. 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/GBKPL2201136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d280fae8269bf7884b09cbc6b178db472bbc8325a9765de62ecc6365d630ee. 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/USLZJ2020142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe5bc70cdd9abcc4f86eacadf2cef7d99d5aca56c6ac37bb32711f0e434b5b1. 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/GBKPL2144724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a474977facfb963e76a8988c43f304ddcf14812c1e386a2da6516de2dae917. 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/GBKPL2155790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570b83e1a7e025239f8f657fd8f954e8afb15ca847d0c98748c1cba381d19a54. 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/GBKPL2153194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe5bc70cdd9abcc4f86eacadf2cef7d99d5aca56c6ac37bb32711f0e434b5b1. 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/GBKPL2144724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d280fae8269bf7884b09cbc6b178db472bbc8325a9765de62ecc6365d630ee. 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/USLZJ2020142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099eb53615474466567a0e478169de23510ea1f588ca3d0a0c9a74d6f86f0853. 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/QZ5FN2077688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaa872680bd56c0b559b44eb835d1ef28ac73a4dbcadfc66071a5a2a15f50d0. 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/QZ5FN2035258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102a77fb7afa7716d3a64e12cf4c67e4674d43478dd8de1e398417b82099733e. 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/GBWUL2038126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8a6d63336be983174d4f89b7a59b8c1ebc25ff1734c004e9a23d7a0495d601. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZ5FN1966137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7485c5034c5c1765c8595c4ff5d4fce367d84961c13f6d3630bf8d44dc836035. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QZGWW1916078.
Can't Help Falling In Love - 8D Audio Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2417ce0921b9526a66b453b0953d1bec427580045628a80652ae8a9e920dc. 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/QZGWW2089364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d516753f8d375a74c8c294b05109f56bb98fb85730951bf8db29f6313a92b7. 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/QZGWW2085491.
Comptine d'un autre été, l'après-midi - Late Night Piano Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fb0309bd3444bd5eddc3366479cd429360a8845be4745a180c4a101a65c856. 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/QZGWW2046838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabefc4e024dfe34822f504f3938257b2f21b9429650a0ef538c3b1b4d779c09. 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/QZGWW1930872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36e47bca856b5c44b11b704a930ec87ef4fda2903dd531c6575d0301bc41048. 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/QZGWW1991327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24597e01474d4ac77f723489db441be5117d6b91b998e96baae83dd607a31069. 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/QZGWW2085490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b114c7ef63831f8be923dfe03bef37f3e2301d93217383d1a45577e077783ec. 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/QZGWW2086273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a1518a2bb9c398c3b2136b75c05b106b98ebef3aeb3cd7278d4f396342bc67. 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/QZGWW1901730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e03c3f22651e1cb8c929da52594a92a6d6f0b6c7a58ba039cc6f640937326d. 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/QZDA81811960.