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 0x32d0dc5852a03223ab0315f6a204d1522116cff0cc274b3500be192cd12a6c8c. 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/7bf19eb3-6cbc-4ac0-b372-b668274009e3.json and https://artists.proofprofile.net/proofs/artist/7bf19eb3-6cbc-4ac0-b372-b668274009e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Batty Bass Presents: Return to Planet Batty, Rise of the Artists
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 0xbde5a1c1ad1ecd2fca75ccf3bdc49fb57e18879c3855ff54b7e104c198496d52. 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/GBT8T1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3027822925ee8177d9f21b4c118b2fd6dcaa1dcf91f067342ae5d6d3bb2e11d3. 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/GBT8T1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbfdcc6261d12864dc7980d3596513b7cafaf56bbaa07cc1150b6efa4745568. 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/GBT8T1100010.
Oilpella (Beats Mix) [From "The Visitor"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d289202526f2bb9a1b6f68421ca0999cfa736a27a3e9886ba4c4ebb10405ca. 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/UK4UM2500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9a91e474f13db7b3385dd40a22d62386272f8ad69df1d9d49bb31c91ad853e. 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/UK4UM2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9691cf6f21bcc4bb96aa0dfd29e88593de2aeb3ea156a42cf4c3fd919c72a786. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/UK4UM2500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad754a28ad1f133212ee06194edcccb761b67151ee5314f451de7a144f4e492c. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/UK4UM2500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96784e76ac988cbc7d78ea93ecf488dff4d70ac873e72dd97d31efc0da7d836c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/UK4UM2500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710162a5b7fb6901a84ac0db5864386abc2dc19291d80a0e7647c56fd4f0ec8b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/UK4UM2500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a15b6268ca1178803f254d696449c360c7557717d9b1e0935a37ada102e33cf. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/UK4UM2500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859f373f4d893f914d645c3e77c467efdcf8066d5cc51440135e1a1e847db848. 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/UK4UM2500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaf2f92b376a36ef96d73fd957693227edd57144741935fe053b10e0a76289a. 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/UK4UM2500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3584fc2f06ec86a72f9db0ceb6670e9beaf16e1674f39d1e237b6a421ce65afb. 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/UK4UM2500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f53c56e2b4f479c9cfab11626926f0637392037e329278a1a265363984a21cb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEN401229009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f9094b00993ee291f836f269a90113c539a778d994f54b957d2eb50971e882. 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/US6R21200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dfec62160daec1e267b73c8c1219f192c31ea043517583529fc9466c73d38f. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USNRS2443542.