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 0x9524f068a2054e6b3570a285622861707a604eb42e367c67bd3b72daea62fa67. 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/e3c28dcf-f832-4351-aab7-a6174690530f.json and https://artists.proofprofile.net/proofs/artist/e3c28dcf-f832-4351-aab7-a6174690530f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Freedomdeus Opus Dei Symphony No. 2 Triumphant Victory
Hanz Fiat Voluntas Mea In Terra (Freedomdeus Symphony No. 2)
Freeworld of the Mind Presents The First Symphony
Freeworld of the Mind Presents 2nd Symphony
MOSTART Grand Symphony of Mostart (Extended Edition)
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 0x0e2ff8c6e9208410a3b72b660a6d0f185316216fc02f18458eb5b6ea423746c4. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/SE5BU2395830.
Get on Your Purpose (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2863b41d1435b345e9009dec71bbf88826059c0fb545e4636acb7b8a2cc713. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE6I32381732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba5dfb9102af39689f9592d0f91691f63e582106bf6071cdf2ded63e6030875. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SE6I32381733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d103066c55996913f6ac4ff5769fc7b8fa7da553f4582585fc0ac2a3b933fe. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/SE6I32381734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cb3644b61006aa48f88f6d6b0dcc92dc6ebddc9b009b6fb983cd5e1f90940a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/SE6I32381735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050e4bbf4ca38c829d1f7995249c77fdfbf1842f720c4b05987a84bc329e11fb. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/SE6I32381736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12c82a415d2469d066da56a355d829b2b229d8a5fc986b23c41336be3577e1. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/SE6I32381737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dcce250110bd5106c7576a704ac806824e9f47f14e9c440efbd24826a212fa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHNC2391788.
Bodega De Reggaeton This is Where We Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ae133e4f0f1455578e0d459a071df6bb10492b5dbe71cc46da9cdafc10017a. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/SE6QE2334164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e70793f2ff4f6375458b3ddfa61d3a6f24a3b079c9259bc5fac06cb5c4a1b4d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE6XW2327094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd5a14c7b45ed5374aa92627fdeb4883bd0536c0a3e38c1d5af6c3cc1a11e8. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/SE6SA2397526.