Freestyle may refer to: Brands Reebok Freestyle, a women's athletic shoe Ford Freestyle, an SUV automobile Coca-Cola Freestyle, a vending machine Abbott FreeStyle, a blood glucose monitor by Abbo
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 0xc6b878b917dc54ffbbf0ec1177a97253b887904a24ec6302034c47002fc7461f. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d392c8f-7dd6-4367-9946-cebbc7209de6.json and https://artists.proofprofile.net/proofs/artist/9d392c8f-7dd6-4367-9946-cebbc7209de6.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 0x9cfeb7a0b63146f7eaef2768e25bbd6d0062540719e23f312142fb52280dd165. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NOX8G2400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27efbb9242625b1d6c1b36a2f3170c32eed90225eeedfba6a01b3d62f2694b39. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NOX8G2400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf547175b9d7cc177b3e7558197aead9e4b2d60639d88a335dd0e36f8c503f5ed. 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/NOX8G2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253544c41c119c979220b8950b93cda98c0da70446810a7fdbb568342a886bb9. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/NOX8G2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0726e6d3427be843e044af0c338248abebd9174e397780a13eebe8625d2808. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NOX8G2301870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcc4c391184f9f96794e45845c928dcc5bfc6b677e1421871c32e3e3ab4c236. 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/NOX8G2301610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a5322c4ad664ae840263b35003cc4445689f00a33251b9f72b403a250090b8. 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/NOX8G2301620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01afb57bc6e3e7ea343204bbbbbcff4f89765d7c8ec9dcbedaaba64fd16fef3. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USA2P2352054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c82613a30fa3ee34bf5b64721ad43b6c8d76f05ba946bc729082a37e499a5e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NOX8G2301230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dd9f5d94373723df950a94019140c2e272a0f1a64ae46214303b7329f28fdf. 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/NOX8G2301070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1993cc62134592e0bc317689490aab65b1788847c9149e99f05f46605f460e98. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NOX8G2300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fd7c5aaa44027962a753091301b7ab331877ad400a09c770ef6d2d5635319b. 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/NOX8G2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68609006184dc5b19c377a9c0a7e9eab2ce2823dbef9c6a5808e86f07256ee24. 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/NOX8G2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671665c53288e643d7bce2f3f52dd0f3f8d53b032fe3df8b01a44ff386de5934. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NOCKK2227010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f3f80201504a5b2c17d252a4017b41f92b4bee5c424766197b88ba0d957e0f. 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/NOCKK2232010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d64a6276ed3aaef5f221777f600ee0673ccb9e57e88968fc1c99256356b34f. 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/NOCKK2228010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6a25a1d173a6f401eeb8ac01abc2e18f4a33209a7dc6610d621a94b688d1e9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/NOCKK2229010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbe8678c7535d0732b7e1d322569b9b9dfbef6c6fc9a567fb829061f1c099e0. 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/NOCKK2230010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b424ad3f0897c3da13ae09272b2ebbba0e62f852045f50eb9de95322ae95287. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/NOCKK2231010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08abbfbb60fcfca10d255bba69d39b159e9535b562e86f5619aad8dce1427375. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NOX8G2302019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2637e1a6d2cb11072b95c2ab26ebabc721977855355533ca6cf2f345a69c7769. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NOX8G2302018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c891fc551f29174dc2597ef78ef3a2ce2e07c57e17071a9e6bec7039e910ec0. 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/NOX8G2302020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4e06e4f013218b626da8744758f91aff312e1c456e5ffc7f5f23e32b58d5d0. 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/NOX8G2302021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8058aeb8ffbd6ced43995622a429632b976c626136191712fec815448064efc8. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NOX8G2302022.