Rainald Grebe & Die Kapelle der Versöhnung
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 0xe979c70c6b30806dfb45a8dc9114f6db3028b33bb1f7de16c896d7463d20a085. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2510135-1eb8-4afd-bb7d-630d94302528.json and https://artists.proofprofile.net/proofs/artist/e2510135-1eb8-4afd-bb7d-630d94302528.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 0x705797b7dc496f28e7a43ea34c5e429bc0915f603723b2c2a8d740a0ff39e8df. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEGN70700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f425568375ec2e37a9671669b067b8a184455a5832701a064bf8245cc2c146. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEGN70700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42eef5faba1c3c5aa2980b8b21a16c4bf72809f9f15a5776430c2bbd507ec6ff. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEGN70700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b344c75bc66394758e46a18e8aeae2721a88f2add77756020b60239e07a704b. 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/DEGN70700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6a81f9742de4e006557922ef18b8d7a2f9844858767b5bcb0be17ff036c70d. 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/DEGN70700144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ded79109af65f9a1535b05ec14f73ab91b8b54fb52ec9df3ebe874b89f436a0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:52:19Z), 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/DEGN70700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e9e4b143f9a6e6715690e047883b50753db16dab05c92cb8895844c224a3d3. 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/DEGN70700153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409453f2014f2afd39c61f2c79729f4220a4d542dceb005532b5f76478f4e961. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/DEGN70700158.