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 0xf14c2319b8a411e533aa9e710a428463f3f8185c3d104dd03a117151d82112c7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/235756dd-7e1a-4106-b412-96fc3b4c9db0.json and https://artists.proofprofile.net/proofs/artist/235756dd-7e1a-4106-b412-96fc3b4c9db0.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 0xb274905ffbc9e707520f59c5dda259f1ecb40d3f4ce23e272b62f13a96385f15. 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/ITXDW1600276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3de198838da8220fca7ab55b87e3955151f9e34b70abaaeafbba76063f7d75. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACZ1731691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f1ba242a3d98dc2005a74b6c1f9696ef95161985dd251d3ae7afbbec82f210. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCADD1796845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99a383931de39a12855b8005606b46c69f117c541b4959b2ed0554bffe949f4. 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/TCADR1898861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b1012e53869f6d5cfeb681fa0182c90b0bdc4bff1c2629c759c72c3ce21ecf. 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/GBLV61925724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4650590159ff369d6ada88007e15cb2cd6517ef03db0bd47d25050bae60df89e. 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/GBLV61925728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc297f28bd8a3ba6c713a17be9593322b57fb8f9795df185849e3357f7f5d30f. 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/GBSMU6746193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cae47f8bef6eb5b6354d029c748f1f09d779d407c65708a22f297d4d4de2300. 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/GBLV61925730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753c1d891cb3705a6fbf051ae3a146fde5e9bbb47bab0a879bc1a084ac9e7ac0. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBLV61925733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9c1aef05993b18241ca427c8d08a3aa30d6acb7f7fe8583f1816e830714b54. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:07Z), 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/UKV6V2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcac4d7290a1aeaa46de87f7095031f6a6e22770dbd94185c9018ef1855c86f8. 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/TCAGU2333317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ab661a4be5399cc640b388b226b9c255bf4cd3d18d4869be9159e975503508. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:57:13Z), 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/TCAHH2379202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12683bcbb549dcf8c898b227f01bd9d39058587bcc0579e137db791ff3b8510d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAIH2470111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d24a5ec4ae8b9f55f462ec3109d72d722c53c50a445f27d861f8b183c86b68. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCAJF2527360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f99f137e63e5dbbf4ab6357bd9897f4e80fab2462a8a4506c6c359cd639be68. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJF2527447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cad68ae20b81a396668aaa163d0a725f568d7d9d03f856302301c2039146f1f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJF2527472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf912f3b4bc51da06253b65633ee5f418798f2a95d5f848d2cd2cf79eab2cbab. 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/TCAEU2060951.
In Search of Darkness (Original Documentary Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088b1db3828e8039b7a721437a5d2a54f615960e2d72290317001070c6ddc6a4. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/TCAEK1926308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea4f52933ceeaaa6f509c75aeca695c02ce05601a3160b75de4cce2bea78822. 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/TCAEK1926319.