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 0x8e53c2e8ce5337aaa43582929be7b02ca560cbb6cb6a844c276578d24674b4a7. 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/33339f22-f6d5-44a6-bb2f-20e6718b0654.json and https://artists.proofprofile.net/proofs/artist/33339f22-f6d5-44a6-bb2f-20e6718b0654.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 0x3eca4c133905f78a8db97d245b89d454d3ebd7fe0da7c44e70b90a4bef429352. 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/UKVD22000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b2d40fd735c490a8cecb0decda4e2d903854ec39fb35ddf2be8adf9e32bca9. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/UKVD22000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64d8cc3ba8d23a237e1d831383b289ab5b12ceea02c035fbb8e75f0da776609. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBCEN2000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485ed3fea96d5cb3ca09e7f98023a6380372d7bd964963f31296624b8ea215da. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBCEN2000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0579babdf1ae5a7a0ad66bad6e6f1fc8e6b457aeeaf6b55cfadfdba24ad943. 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/GBCEN2100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec88c5135098a340e2d07be332c6dd363ec69dc7d242e9c8bbbdf5134567269. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBCEN2100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c19f622d897240219caae9be81cf2bbbb44f5afe0e334492057511689e567f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/GBJAJ2201013.
It's Your Time (Soul Mass Transit System Remix)
It's Your Time - Soul Mass Transit System Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa786e3b9bbcf047e2c45a19c8b07583582a2513c9214dfb45f8052de22a39f33. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBCEN2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11160fa23ef4471f5f7264bf3a2bba4df9a48dd6cb75be2b0c57ac6fe54317ea. 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/USA2P2346329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9727ae9f4c05db5585da91c23394ab8071181275a77c3b8a7a7c3013061c0bf7. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USA2P2412025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1121cf73ae74518ada554c649a1f6e9c52bbe11af5f230012a3b8701773c996. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA2P2421211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3543af4c2b2fbf8248dc7753d41d7317adcd50e09da549e565cf7ab049b78a33. 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/USA2P2429197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1121cf73ae74518ada554c649a1f6e9c52bbe11af5f230012a3b8701773c996. 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/USA2P2421211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2732a652de74d39d03359a1e4baed90a3ab24616e50e888e41b8f25e6c3cc0f4. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USA2P2429202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0549411cb4cc3a113bd2a8caf58453b6579ff977ec15db93ceeba04fd493478. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USA2P2429203.
Say It With Your Body (Bklava's 4am Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f530226d2c05d2fc0eefefbf4c2b0c38172b1d4693b494d72e74edbdb431bf3. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/GBCEN2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b73532a9a0d4cab39fe91afa0fd2f954270979abbc8f354d1c47140b3509a63. 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/DEG932104756.
The Dark (feat. Bklava) - Extended Version
The Dark (feat. Bklava) [Extended Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a5ece4c5c92ce6b44e4b289c0bce5d8cce2ed57b7e9767032fb03237b1c0c1. 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/GBAYE2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175ba00f6020d71a2ebffd813741494b04e368a6e3605128d62608eef0069192. 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/GBAYE2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8418f509998231610860009d478b48f781ad27ad319b7069526d1940091c12eb. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBARL2101494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad1779ff41ca8b2640feedf276507947d431e7c4afa7ef93bbfb7967a112895. 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/GBCPZ2221349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9642cbbdc971ac7700339d3906d98ff8796100a6c7d4c3e25b2ba3a65dba0393. 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/US23A1567105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dc6104057e72509c75a1584c5a204024b13a0e67974e3ce6ca32a403dcd5a2. 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/UKQNV2100174.