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 0xbdf31fa8fc3f00aaa05bf34d3a86ba1c297e3bbb5dfb41d3d9f9960bf2a5f0b6. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8b422f1-efc4-4a0b-b0fd-c1dc177663d9.json and https://artists.proofprofile.net/proofs/artist/a8b422f1-efc4-4a0b-b0fd-c1dc177663d9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57578b854cbba6a244cbfea3b4fa396c5a83b4be11f3d0c8f43bacd905e4ab33. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPS801094299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e529941197b0058760dd9b0691b56845c05695f383e4394b21521b49a4aec3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPS801094300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0e7f5addee888af341880be0812fdc9815c7cfc5bbbbf9509761ae036f52a0. 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/JPS801094302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffb492efc437f1e305708314607bafee4c66457719c78cba94267ca41612bb0. 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/JPS801094303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354d312abed99fda6c02ef2f8f08be95e8c91d014bfc79ba2566e8d9eae7a6d8. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPS801094294.
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 0x29efc16e37adef8efd2c0f69da91e7bd308d5c363868b7300443c60ee2fc67a5. 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/JPS801094295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459a89ffbd2eb8ecc8bc94a3634449d9d39ff64e68b5a368b622e320b4e35b78. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPS801094297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe685d38813aaf58265747e3c62492d2a7f7ae43d7ad1dbcf2ced0f1443681c4d. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/JPS801094307.
STEP UP (BACH LOGIC remix) [feat. KREVA]
STEP UP [feat. KREVA] - BACH LOGIC remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dad3ccc4c501e3cfa0d255965de8dd5cdff50d3512f458205e66e11cc51798. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPM2029519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f4ddcff2b87fb66c50ed00a46f4bea28dbb134a38eaf311a03e665aadc4399. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:41:54Z), 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/JPQ332280673.
Catherine & Catherine Full Body Soundtrack Set
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4ea5a67f3317c03c6ce6311e5cbe304b84a536efcca942594e1c3017efa884. 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/JPK651100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf127d1e1722473ae245f61e30df12c877552e13b507cd554a8caa9269efbc49. 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/TCJPU2218571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe380e4da49e52e44dd177bde8f5e67edd59904833cb691b798c08eddfc803ceb. 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/JPY200902017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603faed3ee0dd97024a910ab1d2642a91bf56204aa2bef0dacf11036548ab866. 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/JPS801403084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c331320849e739b5b4976aa6d80ab0bca084fa789eee95b3e19ff5e2b03718. 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/JPV501400453.