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 0x07a1d2665426231600b964460254ae478a855e1f8d9e0637e200cf19be92fd62. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d423b6aa-b475-458a-b63b-2b40f9a9b408.json and https://artists.proofprofile.net/proofs/artist/d423b6aa-b475-458a-b63b-2b40f9a9b408.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 0x4f59bf0a6c6ea1b81381042f59dc29e94add19d12c36825bd32d1e092c842b0c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bf3b2a879294e361285d66d6f27db61680f4155b6b36efa607af67d85f2f5b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22300731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2ebb8407283ac45577296a5cb516795b4ed383d14596f042d2926c2f71ea90. 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/DEKF22300973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1f06b86ab906abe87efa5891dbb081c3f4a88807116c32c4eec07be9ea1f23. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEKF22300929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfb1426a0475a9efb09d29b1773e5d22da5b00a4647dd030722f3b27fbe665d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22401663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8eef6a8ed5d03fdb316842620b198af8c5341cd2e820b0ef2d0e898993b0ef. 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/DEKF22401665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0288459baab3b957adb34165439d3c848d35ba74066b86225708a5f7f574ec4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22500465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d335c78d82eff807217140ea91a4bd086047b81de525683de41d1855ed38bf4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22400779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. 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/DE1FB2300064.
Ballermann Hits Party 2024 (XXL Fan Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. 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/DE1FB2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. 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/DE1FB2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad28683a92a99c226045a3a4da21cc9ad4ba229f547280474e40a08ac895c6b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22301565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69752b3ce0776d5ef9ac5ec09e42b0229b584cd6af7712c101b4aad4a9f1b6f8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEXK52200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c8756cd03d0ced558050b5db5e85eaf56aee6e2065f26aa1d63c5fdfe88fae. 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/DEKF22300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe0a238c04f60e0c4351238ed56fcfc31a2650aad13f0a2c90aaba15797118. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DE1FB2300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69752b3ce0776d5ef9ac5ec09e42b0229b584cd6af7712c101b4aad4a9f1b6f8. 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/DEXK52200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d2c59e58b2c647d043526ebf68f9cb7e69788812fb6dd02a99deaa860abc71. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22500539.