1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf1fa17e1c64dce9f4d6d8dc48469fb3c914a4f720f04fece79365c141317bbf0. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7b6bc17-1cc4-4944-a44a-4df7a8ab7a87.json and https://artists.proofprofile.net/proofs/artist/f7b6bc17-1cc4-4944-a44a-4df7a8ab7a87.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 → block OTSBitcoinBlock must exist at that height 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 0x8be1c0f1ba3cb3e15fa8af60d6464c62d89b2068dd623df7d5509f8dfaa0084b. 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/FISRK0900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77820f189ce5f5263a02a7aec440774210f67778536b960f5b212eac66382cb7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FISRK0900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd738c32f26fa2abaec376dd6d131bac2ab486326f19715db8ad13120eb117e. 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/FISRK0900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bad9a9beb89a954efb39c2dbbe6ac737edfa352e2bf48a680caaddccec7a1d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FISRK0900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e728bf16014add43387e9095eb84a83b55db9157846aaa16909b85203a6070. 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/FISRK0900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b9c63cffebd910d088fcf79931a29a029b56b54891660ed500264858242eb2. 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/FISRK0900099.
Ehtoollisvirsiä ja -lauluja yhteislauluillasta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2137a9b0ece9ea39fd292966b6c8f531f8da5cc5b764fb05f22cb986f6a089. 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/FISRK0800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5e3cc388760de9b4d4f684757b7a9b3e08d744e22c5d8c48fd91e992fbbb8c. 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/FISRK0800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed849126b0183eb88c5e9cc868e51e18d8f7d35f3d714b4c211aadd629b58ad0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FISRK0800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43d23605048feecdfd1396030467f267c2a51870e97d0f4cbaa88d79234a7f9. 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/FISRK0800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bc47b221efa7c5ad4351f348b6ca7eafcd12dc3ade14649aabc49d59847f74. 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/FISRK0800082.
Siionin laulu: Oi Jumalan' kuink' iloitsen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fb04215af5a5630ecbcab5eef0f11d0c72ac344e5a10e9ef8ecd50e18e44a2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FISRK0800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c000f0a18a8d2be03e52de981cd0c1092a7706713add6e4b71aca0232b8265. 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/FISRK0800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7db533224a11a190298d11c4f329a656a7c2beb56247c0b0ce4c2e4d4913a2. 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/FISRK0800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7a717de260053cecd16be8014c93743c745d2b4cee66d4375ebd880f68e293. 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/FISRK0800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec48db561408a20bc4f6097eeaf720154b37985b811d44e466c4d5d9c36ae0a. 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/FISRK0800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410f40adbcb99468c8dce942c9dc0bc94bfba99bdde353ff9a2ecfc60a8836c2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FISRK0800090.