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 0x37092267f55580ed5eb6bf93f71fc22412dc8b4190573f4353b67597f5d164a2. 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/451c896c-2923-4469-8aa2-8eecf5881c32.json and https://artists.proofprofile.net/proofs/artist/451c896c-2923-4469-8aa2-8eecf5881c32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Balance presents Sunsetstrip (Unmixed Version)
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 0x580bda1250741c7fce0bfa5e9ee3260cd66524072d513d426d201ccf154dec6b. 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/AUXN21919089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8667550f7fa4ddd716becd0ada22779ba137b61f169c0c8efd2144fa33fa0dfc. 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/AUXN21919099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe59428e573c3aa8a6597ad08423535f4ad83865955c45ec61aed3e01cdb4d87. 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/AUXN21919106.
Balance Presents Sudbeat (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bd643b7acc65013021fe8e4aafa1f8c4aa6bf88cb276ff83d465dbdad51e73. 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/AUXN21726370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbd5c610fd121fd68aeb1eedce9f091dcc31f2f9cc71e444ee35145e119775f. 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/AUXN21726377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdef88115c0052dba50d80736b43055a748b2010f8d0e8fe234dc329e5222cb. 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/AUXN21726380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e69dd2aeef8a2a2b85fc40960887d3fef6a26085daab80b7321e871fa2bd62f. 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/AUXN21726381.
Balance Presents Sudbeat - Continuous Mix 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bea5889781cdf64e00855e035d7ce9a2dcaf9f654cb3b123081c221ecac57d. 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/AUXN21703972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475d9fe318e8a9e832eabc11ea51a57a94e1cf6dfa1a72b748524d67086e06df. 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/AUXN21703984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf538412392cec53c4bab9934d02a08538a9b182869c74bfbd2086388673dc33f. 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/AUXN21703988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6178e22ec6f9f1be2c4c658a920205af6a769d74f641583887960e558d254743. 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/AUXN21703989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcbd4121eea7207fbf3831ed1556093cb43bf600ab1aee5af3bb5b99816e109. 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/AUXN21703995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50c5e06648afcd2eb1d19b5af3b2c1ece8ba785888d6e98d710407307e953fc. 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/AUXN21703998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda88d066eb7f56c3c9665cb8bdacd1ae432ec9c26afb5ef98dc704356d13737c. 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/AUXN21703999.
Astronautin - Hernan Cattaneo & Soundexile Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a90e003a0021964a0ddd97c7771ba6586c338fbe2b4112f5b2eb20353d2669a. 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/DET752200068.