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 0xb1a37df8c8e97caa21dde3c116899f31f66124b123e444f38b9b6994086d7651. 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/a9decdad-83e0-482f-a4b0-f71da2c83913.json and https://artists.proofprofile.net/proofs/artist/a9decdad-83e0-482f-a4b0-f71da2c83913.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 0xcf5967fbaf699ea1a55393a15a10c8660bf8d48d39996d2d739d9983c563fae8. 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/GBKQU2467501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1865cf7ff00c1beebcd27be8595f87166028c01e85195fa861f126e47d85f468. 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/GBKQU2453677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63a858abd4c1ac4d8d827381856df6ea4a1fdcf801c55891eb5b8b302b3eab7. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/GBKQU2449658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8034a02f2694d9d3f73a89733cdd667daed56377df70dc3759b6fe716b4aee5c. 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/GBKQU2434095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90fc7d608fa9552c15843ea8564e2de6f09d32c4ffb1e8ad3e5fb014a04d7ef. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBKQU2422913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d1e1997f05d9746d809788741cd34d6a4e1eddb09326029905ba1384d15bde. 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/GBKQU2411379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752d24a401ab11ae1a432b8c2584fafa993ca42dcbcda461e6b8459a78881c19. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBKQU2406165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffd28e0979085bd3ba7950860bd52d4e7db93243e436ec45dbc8b1bde1bd2e1. 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/GBLV62322175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed72ac535e5e89da062c2df15485c7faa9eb491fcefc301916200b864317314. 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/GBLV62304185.
Play With My... (Deep essentials HD Remix) - Deep Essentials Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb699cc2f8abe6f008ea68e84c63546de88efe3815d2f30cb3a456779511179c5. 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/GBKQU2396004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa095bbda2c0843d54e7d37a3692169b683a8f218d94e5e02b152270f297522e4. 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/GBKQU2384798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26628d9d645fd56aa67a8a4aca38db39f1f2550f126048783081ba136fb0e42. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBKQU2374166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12694c410cc21955282903368d6fe69a1cc4ed15de440a28ae8ce25de14fd3b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBKQU2365697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf3d51eec241161234d5c9f965255f3f45e9671cabd58b1ac5ea2b29ea50de7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBKQU2351372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c83a888ad4c81355961387a64ecc996f53fbe89a33b44d2d28b900c9447c4a. 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/GBKQU2320914.
Couldn't Love You More (N.W.N Remix) (feat. Gretchen Gale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e93d88034f80e390049553f77f3b69d3f16b2d296025029d594c04ee187abe. 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/USA672100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc7a6f7885c19f48769ee9894875e2073c19c0c41b058905a1220749b7765ed. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBKQU2179623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaef36fba6730e1b9d10e90d10b7c592c4f830627368570f6fb251891b610815. 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/GBKQU1895858.