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 0x7b2ace87d4d27e180ee55825c6dedbf9c65b22eb83b8896eb9d66464f55cb835. 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/cad359f2-1b6e-4ee1-a7f6-ab9a570fadde.json and https://artists.proofprofile.net/proofs/artist/cad359f2-1b6e-4ee1-a7f6-ab9a570fadde.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 0x343516d5bc95d550dcbaaf10605ee90b8be0f8b6f0e74f67c042151d49494257. 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/DEZ380800222.
Bleeding Love / My Life Would Suck Without You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfea07b84d0e018bac0c965a4f12f870a48bee7f75505222457e2c03de17d217. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEZ380900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa12141802025e1ea43e169621cb91ee191af8210de00a8a3dc656dab4ade113. 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/DEZ380900062.
Just Dance - Ti-Mo vs. Stefan Rio Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4577c0ae1556ac1d445f8cd89b5864176b2c50693b99980bad90d6124407674. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEZ380900030.
Bleeding Love - Jens O. Vs. Ti-Mo Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d0ed95bbc4311d03ad6b22af1a63fb3c5aff23004af0c5b0aec1bd9bce58ed. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/DEZ380900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d235efa18460892e2c253f608090109ab7c282fc245302e07e5bca15efc4c52. 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/DEZ380900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabf798a331d56b9f9dd9c6b051a3016907be4c23447366aa47f12190e5743bc. 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/DEZ380900344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041a6c209bb5fdba405d1b9095b2165acbdf5f5e3915587e711c70ab1746a8dc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZ380900340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041a6c209bb5fdba405d1b9095b2165acbdf5f5e3915587e711c70ab1746a8dc. 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/DEZ380900340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75855d5f4c4ffd85c8970e7e64ec8e633996e82594c80624bc01cfdeafb3f85. 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/DEZ380800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a64fb9da61cc617afa8a201c7777f842064bbaf83867107e0dab25f222c3112. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/DEZ381100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ced854b6b1b4019a89067735e506fbf202ac23231ad6410402260516091e48e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEZ381300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071a20af34b9af5af41fb5e66281b07b4845cfc5326441578c602ba7dbe470eb. 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/DEZ381300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a999c679974859eddde3f73f1681cec7dce8fef222008fe8e8f5c2e8ad6baa1. 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/DEZ381300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323c4c3571011a4958601062d07abf3c2734e9f2f3f03592525fae59568d0fe6. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/DEZ381400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e35f91dffa44aae31747772f0f375f19c74a822c80f9ca6dba88968c2b9ddf0. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/DEVT81900130.
Wild Energy 2019 (Mixed by Alex K & Hard Dance Alliance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d77c295bea3d2bb2419fd25b5a346f7d6faef5a7e8f86d694c8e7b5693103c. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/DEVT81800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0763e5d1e9eac85cdd3439a02cbcca71af7da90c402a063b8eaa649822342b14. 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/DEHM81900727.