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 0xc778af7cc3d394b983ebad64613a1c7c989ae7063de7e6717d993b942b5e6718. 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/7546b5e0-1d6d-4bb4-9645-b321063093e4.json and https://artists.proofprofile.net/proofs/artist/7546b5e0-1d6d-4bb4-9645-b321063093e4.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 0x365d5380280fb95e30c6e9d8edcde6b913b118820c24b788ca47d61000fcb975. 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/FR9W12207670.
FG Chill Out #2 - The Deep House & Lounge Music Must Have Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4950e4d58a159b817763d617445fe344742b06b2cb80c9ee8d8fb4309fcc8e66. 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/QZD5H1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb90e75de483e12bf9fa3aad240615095ca60084125b4ce9f4d0d3a236a8f01b. 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/GBBKS1800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc643b4e60d05e52843cdc41f77bd191d4c6ca25cbac10e574b5fad5d0297a1ef. 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/FR9Z61700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3938ba36a2322eb9de374a336ea99cde270bb32934132ea3a38c090733d51866. 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/CAN111800382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea01b64373db4e956a29de2b59e99ac287d8bbc2cf17696077864f8f94d8a67. 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/FR9W11313996.
Alabama Blues (Todd Edwards Vocal Radio Edit Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57595b0de71b682a07b7f73487d71557163bb72c84c1cd6a90e676c4b2097861. 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/GBPVV1702097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce94b1f375bd2b0fb842c8859b3e7289a04cacc8c4df94e28d9c6bbf72fe0820. 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/FR9Z61800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ca3ece17bf6a9dbbcc683cc9c04977d19beffee8b2b6de3b0cf4c3af5272a0. 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/DK4YA1705401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911789f635bea1fbec81d98f4aeca5cc7bac7c333efe759f4879f122c7099529. 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/FR9W12031689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374b3f5bcf28f57570ca22c3f36ad4106aaa4823ce5b00f961898f07998d377. 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/FR9W12138447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91b58fbc7c80d986143794a079ac4e597cb9b9a4c56cccd03c5a2b05c8762cf. 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/FR9W12214830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14f4a7ddf9e13072489c13c4eb7c43900fea416418d858cc093aba0d3a31b2e. 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/FR9W12123543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a36544011cf24817ffa053b5f613369d29ce377c638c20395a173bb2b45e533. 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/FRV601800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56648757f73da647f49e5d8b71c62f308422b76c7135b2ea52624a0fdcd5f10f. 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/FRPZ92409280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3fb3fc855e2732f17a0d798d408a93c392249bc9763e12b7dbd75b076d40d5. 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/FR9W11921503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5f910dc940e63cc3c6e041645f08a70eb4ce25f3d71ebd05839018d29ad05a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR9W11921504.