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 0xc30bf0fe175793c8c26b8b1a435175d6a9b23b2954c02d5dbae1add88abe9cc4. 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/d62edb02-5b42-4a8b-b562-98250cbd1d29.json and https://artists.proofprofile.net/proofs/artist/d62edb02-5b42-4a8b-b562-98250cbd1d29.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 0xee2dbcce67260f245000bba5828887aca71c6b61b3e3c3253dd8a7ff64912bc9. 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/ZAY592300074.
Ya Liubliu Tebya - D.General & Deep Xcape Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fb9e20e29ece15f80a42e4bc4f3b4926b2407e0d712938e64cb4c8086bdde6. 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/ZAPJE2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713ea101a1fc1a1d745ae1519e1ad9bc89e5dcbf2f00d1cd978a1d07c0bef304. 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/ZAY592400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4715a471cfd39c7a0cc278189b97571755b9f1b1cbe56bd575d75c61f09df770. 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/ZAY592400070.
Bayeke - BeatSoul Alternative Touch Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38ca41c2dd66f01ceaaf7500ff2c5ba815bca045f227236dd0f03cf6c6c4987. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ZAY592400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fd63a042d2eca0ea86827d471d53d82e7a5e630c3cf211b33a7769e5146909. 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/ZAY592400074.
Time is now (feat. V Underground & NutownSoul) - Artwork Sounds & SGVO Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63ff8fbb5c07a1bead26ea70d5a6ba2582239686a882a5fd639e5d35f07fa09. 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/ZA56E2201400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c73ca6360a0ce5d700c73aee99c7792d5de7a8fb38faa1d160de4ed0afe62a4. 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/ZA9ED1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7beedf5f4e6678418bedc9058c8af5b4cbb7f5b395b73bca40882c44b2f9d79. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ZAPJE2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577b7296855d6adf726afbf2232ce67837db522270393a9f090d8881bff44589. 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/ZAPJE2400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81b01f69e4724a88edf2f9789dc56704547b1de552173a99d38f1cfa3a256f1. 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/ZAPJE2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fd6c2991cd7a89f44d46d00de17c521c0a4b259168e32efbacebf9c4c2b3b5. 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/ZAPJE2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4febed4ff524244970ce5fc37a340fac5250ae0d8262a7742f35c8e3493f43cd. 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/ZAPJE2500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbd84bfe8b6c4d9205a344ff748db6855daaa616017d2f93d7173a4b6d987de. 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/ZAPJE2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0498828a965ad90ca6a33787f78c21cd1dea4cfad747c3197bd718eebbacb4. 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/ZAPJE2500020.