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 0x36ba0a241ab5d2f65a06f65cf4f613621b7b657b2bc14da9183eb405e1cdff7c. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdecfe02-a5fa-4d5d-b44f-75d7e7a60097.json and https://artists.proofprofile.net/proofs/artist/bdecfe02-a5fa-4d5d-b44f-75d7e7a60097.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Du kannst verzeih`n aber nicht vergessen
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 0x13332ab0c89b73ce899df967774541152240c1e27e730efa4c5280fb1cbe5be5. 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/ATB842500511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a821dd0b320a167f48b86febd37595d173db17c65801d9b4369e0173d58313. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ATB842500545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ea561a8501247c74e5eee70bc6c87c4f6c900343ac6b7de2574b20e0c9f167. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:48:19Z), 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/ATB842400456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbc3d7c5d491d5d73bd533e15cec7056c8adb584b5c1848838ed5d9abab59a7. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:42:35Z), 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/ATB842500546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c46ae32e0a10305caba7c76d4aa90c009b73095eef4527d7bdac3da2f2b9ce. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:21Z), 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/ATB842500547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedea7ee4694b40a6a0697bcbdff3d7afe70c7f94b646f2490000d4b10c8b5ebf. 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/ATB842500557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73391a8cca5d70c79c61754d10561112b2c11476f528afdf874b616a640db9f7. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ATB842500548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a302ff1750758096b71696d392180da54ce2c4ff539df9741c287c72b40cdb3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ATB842500551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c5207c09adad6772b7dbd9e92d82d862d95a4a9f787a7eff70b6d658b093e8. 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/ATB842500553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d5783123608e8fef532967b0e3201d60f7d281954527bfa29084fb44a03246. 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/ATB842400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b17d726239f6e42322b2cca8a125a79db43d503765f86eeee72e8139d9924e. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ATB842500554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa819dc9712cc0c8d9bc592aafa33c8ca026f6be7f68c664b831e135924fd2c53. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ATB842500555.