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 0xb69c93e61b528e5c8be2a3ceaad6ce1268d5e732f8993f9f32b692bb0408d303. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da9d97ca-4fcf-4647-8bf0-178f36a08c1a.json and https://artists.proofprofile.net/proofs/artist/da9d97ca-4fcf-4647-8bf0-178f36a08c1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fallen Soldier - Lowriderz & Distant Future Remix
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 0x0d182e9318794a8bd1dca56db21e4bd849cc2a9d6556208cb137039053913c7d. 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/GB8KE2410518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb551bd70352b2dfe4686aaeaa225425b79ba116f22155c8acaca79a0b24cb38b. 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/GB8KE2314541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301827d21c6f5bc730d5b38f3a50b3c68a9cdd2638b78a5233426eecb4e92a29. 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/GB8KE2416961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85744f409f9fce6b054c5f3b45379213e5f674f45edf566b61f406a8115c527. 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/GB8KE2418800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb4a658ae1f86a92c4eead9413c42e6a81f38efb27840ba79d568c266f04ce5. 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/GB8KE2418801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9a96575e05cd83a64ad07f9ca07a3ded726b5f1d5e7b909a3c01884cb209a5. 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/GB8KE2418795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf754a9bc70f8bad47928a5de4c12ea280e25bdbd67c71a37475c1c5d51ef114. 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/GB8KE2418805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301827d21c6f5bc730d5b38f3a50b3c68a9cdd2638b78a5233426eecb4e92a29. 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/GB8KE2416961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bca233eb31f87c032bb3ec0a92217d9273642649fd746e9b247392858e9113. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GB8KE2326977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70de7d34b144414557de93b7c638373675ed48ef5dd987d9b2902781675d96e. 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/GB8KE2326979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6804aa56231809a028733c07a8771d35b50eccfce2d68a2cce584adbdb027a. 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/GB8KE2324688.
Deep In The Jungle Anthems 9 - LP Sampler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdb5e2c87c41da17c39a19a272e9fe19707b80315267c9f0b80210db3793964. 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/UKEX32025753.