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 0xef4c8eb5c9e9f4423bcd9508d6623df3843a2cf37a987d2659ff04b974b5a3e3. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5783ff69-2c47-411f-ac8c-3ecd29a94381.json and https://artists.proofprofile.net/proofs/artist/5783ff69-2c47-411f-ac8c-3ecd29a94381.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 0x603b748815b60dbe0dd2e7eda23c4d6389f5b6ae2dca8d2ce883d4240f14fd9e. 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/GBKQU2459890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08066fe63d24fd95f230351f2cfc531ae8f4de5ae3420634fd09b8451639ad13. 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/GBLV62302240.
From The Underground (Gearbox Anthem) - Vazard Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0a71cda0087cc3bee0913d7845425130cb004dd636ca4d85430648086bf3d2. 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/GBKQU1275080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f464e4d7b6470d4c45e43d1b713c262b2849d65d73e709bcb42cc2af477c7d7. 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/GBKQU1360810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac59eb687cd5b1c772fc3a33e57918664e2e6ba08865ddca13820f58b9411643. 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/GBKQU1321181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4204896bb5b1b711b4f9ad6b7c222f226cdbab9c97cd8fc6c2c2f667e1edb72d. 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/GBLV61404560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f769a9e1759706bfcdbf19335fd33a8ff6bf44394991b36de93eff42d45692e. 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/GBLV61414977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51290c279370cfcc85026b32ad7b20106b6ede3db06586a234f0f132ad16521f. 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/GBKQU1527327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16e42f1a892900f09ad685c088e61f5050a81fa4b1ab65dfd3895426e6f0f50. 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/GBLV61637198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b02d8b8da848c874d353284350a34c84c809eeb10a82b60422f6cfa138cecd6. 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/GBKQU1832268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb09142962fa4f742ecf6cf1cf3ec4be6debf0fd4e23eccbd8e349e792b41cb. 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/GBKQU1838982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cd3cc586afdcd4618f2b66c29a161238f00600b6941d15c84760bf02aa948c. 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/GBKQU1866995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4289ad849168bd585dc3fd5a1d71ba1d26e6966af4b439780991600db2e28bdc. 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/GBKQU1771697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad80b38e907619354f6e0352927eeef438d1d8b27bbc1fa02efe42b88b83de5a. 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/GBKQU1771705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6472faf08ee9576dfaefedd825aa402b54ed397618b0061a50278dbab1268a0d. 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/GBKQU1771712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde08c91ee9f6070616f4974de7f40edba4b422acdf8b6005888bf3c4021efda3. 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/GBKQU1724333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786780444eed23f20f667051de7c7a92abb5c81078c6a8cb6860ad16979685ca. 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/GBKQU1724338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768172bd86bd8053e7fc5515ed1ea3d1926da6afa118de83afaa9d5c1be727b3. 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/GBKQU1724343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc403c157df86dd854f2721eb9ff1eef114c66d0d8b7818b833126e196df47408. 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/GBKQU1802613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05261e098af1b0918379483f2091af1e85afdb56b84ce6b4ff7d591afa914b4e. 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/GBKQU1802614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d0d08560a053c9250916e7ab841933046528b2d8f60814f9529c6299f706ad. 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/GBKQU1802620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e6162e97a719632463233e8eaaf230a6655e41cfc57d9fd9fd42135b511890. 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/GBKQU1802622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecce6b7112b3e493e4bcf73d0c4352e681d4017247d7a52e0af2878278be6dd1. 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/GBKQU1802630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18644499f8ce20982781d6dcee9bee15d54d41c42dde3b9661205cf7af355ac. 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/GBKQU1802640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31475ddab2e66f78edaf3f7fee8bebd6d6c2174beb74ba9c407b3f5840e7b8fa. 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/GBLV61641220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c46c9ed757c0aa457492ce63a58a0842dbc25c65e602fa7640f5bf5e77d3c2. 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/GBLV61641232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489337a15e627fadb069f2f3f2f0cbd32fad90abf64521f4e65cd61fe86b3efd. 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/GBLV61641234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28bc4c249ff5cf6292c5db13b93e098067290e59e6e3f9cd8a2a70fb0522d98. 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/GBLV61641240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70094bf0f2e42a9cd7ec473979bd5ee93afe97916785de4f9bcfed17d81fba5d. 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/GBKQU1700418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fb3d4fa08f2e76e54e1528ab4ec10f5c1af895eec1616e345695d5890ff6dc. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/GBKQU1700435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea8752e955a272fb5d932f86d5e43b66b4091748c4db197bcefd172c0a689bb. 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/GBLV61521019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bc56c512134ec33ccb3269dd6eb5452ba9d87b61a1a3622bdfc3745af7fda3. 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/GBLV61521023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1522c415b9364d0a31168424c3bd745563c84b2e9e323f3fac38a32016a1868a. 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/GBLV61521028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5995f888ba791ddabf58204b41cabfc7d539c04af29c5e913e557cd38b307f. 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/GBKQU1715208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a9c9bf96acea9c7e450524040cd2f557ffcbccc57649e4a3ce3eb6abab44b2. 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/GBKQU2493358.