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 0x732d8fe51c6cfc1c8f36b16bc5a581fd55bfb34b1b40529700b3b5742e15d8db. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92fcc1f5-2cc3-4dfb-9f0f-09b3cb0d703c.json and https://artists.proofprofile.net/proofs/artist/92fcc1f5-2cc3-4dfb-9f0f-09b3cb0d703c.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 0x9f4bf976470b267766a33a59f5d1ab86c0de1306358d913f4f67c70e18f37b78. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/FILOV1800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae54d1591d6390ad4fe83ee3d7da2de7607c6d21eadccfb0409fc4eebb2ab15. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:31:57Z), 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/FILOV1800082.
Voin luvata sateisen kesän / Jos sinut saan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712df24b3e16ed5cdd9d9ade8b97b04142aa0b799438b0537855b0b9536d21ad. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:45:02Z), 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/FILOV1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62185833603aad22cc7576a45db91443197615caf67c21ae91dfa892b805ba3a. 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/FILOV1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1796ed2ff6a7cbfda2328fedb1cb14fa40e2e2954d35fc98da7f9d06f9efac2d. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:48:01Z), 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/FILOV2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c16790b62b4ea2925dbd2544e4ac0bc4a0be1c809071705ba3a2e4e9d48296c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FILOV2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910a43cbf18ddd4e1cb450e13063919b9c95f8f48740568a457e9154c2546c46. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIRKO2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fd9500e3a9ac62d708c8087c82d96b5fabb73d280e8d895883405e4d7601bb. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FIRKO2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ea0def7cb0da93498d606017e42ff5f3a0ad50f00372af6a13c4a4149a8ffb. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FIRKO2100008.
Uudenlaista hiljaisuutta / Aurinko polttaa ulos yön
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f310a5e386a74fca5800e407ed679c76cfd4e2aa45d72db643963d0da5e435. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FIA9Z2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404b5812d53e314c903f50160848742dfd4e1540c4d27d3fcfaf6810e9586094. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FIA9Z2300005.