Kai Michael Hansen (born 17 January 1963) is a German musician who is the founder, lead guitarist and vocalist of power metal band Gamma Ray. He is also one of the co-founders of another power metal b
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821e47c7b76a4fb8fa8d3692ce15e8989b32ddb21e17268694e2c90572ad989a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5c52b49-03d1-4058-b3a2-def8e1cf6bda.json and https://artists.proofprofile.net/proofs/artist/c5c52b49-03d1-4058-b3a2-def8e1cf6bda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845811cd7ad363eb7e6fa2842c6a609114f217c7c14170b40e869559fa2908c4. 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/DEH841600477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1510e927e017410e9eb821f6b87827363afcaabb10152e83574a641555735587. 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/DEH841600479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9044de08b61be96bbc4d43cb0c62a7006d808cbf6c426370cabf87400e4807a. 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/DEH841600487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea66e3d0f5cb3d2a8cf71cf0197f05b6d10f4247361f68b017dfe3a5143da756. 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/DEH841600485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7b451d9d7637b8d87e2ba36842ac0bee8e4abf78a58c2aa6bf50e56a7164b2. 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/DEH841600482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2593ad244e3e394c51075c496ecde73389da8051bf106a5b9030af8106af7102. 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/DEH841600484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c59fcbe7e01a8ae77df7ae40e7b8a8f6afbcb271c16785c4b60aecae7c3cfe. 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/DEH841600476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db027a8adb5d4cc7890d93eaa8a10fa18026e6312451f510f14f19b3b971ee2. 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/DEH841600481.
サンキュー・ヴァッケン〜ライヴ・アット・ヴァッケン・オープン・エア 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54887107c75f389ce861f317ae6e81cb4367136dea265676e4b6570a0eda44f4. 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/DEH841700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa249ee797ec1c20345d7be1e456ba9743d0930020aa75cdf83b8abddd4d1c7. 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/DEH841700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04afe58009832ef2c958dee244856a0840e5ac7a5cf8bcebfaa5e518d7ed7ec. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEH841700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef787fb2ca7b4d10050d77707614416097c088b6c1f7f8efa4391ff8ce82b4a. 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/DEH841700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c1a71bff0c76218424df946b6a9e9f3bf2c32b7062f69c7a5f81a27b4f9e34. 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/DEH841700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117acef64605c58aeed89e5471d87975dfccc3db83f668624a53e870e677bb07. 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/DEH841700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1732c41697912da6b64910aabfbf0199f5ec846ef5eae68d3d8d21a6d3cf3c. 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/DEH841700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11ce44c5e2a068ae7231ee12a48ac1074a2ba75912e2299dd267125508b4ca6. 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/DEH841700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe93d1057c580bf9d51f4a55e5b6645cb8717e11694fef14e3c29c159a9c3d58. 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/DEH841700113.