Michael Christopher Landau (born June 1, 1958) is an American musician, audio engineer, and record-producer. He is a session musician and guitarist who has played on many albums since the early 1980s
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 0xbe562ceaf8540fdec93448a61e830d0ba5164f2292f845bfacd9e70a66eb0637. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/106aa895-7cf9-4515-9fd7-c6c9660483c9.json and https://artists.proofprofile.net/proofs/artist/106aa895-7cf9-4515-9fd7-c6c9660483c9.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 0xdcddcd29203aba89f0b239de99bab1b3b2c99fb8083162d2ecdd9e36ecd162ce. 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/US4R31012752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442f6d7eb6cc31848c09cc263978ea1eea87c413c73157fa7710886a0035beb3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLB931800401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688fd1f003f4be9e83acb602a3d3349b4009907d9b19a6e4c4f65a7b89f32316. 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/NLB931800402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad456e1648bfcbad86868b4d68dba7584cc42f31ad0c2e4874038497c2f36e9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:18:17Z), 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/NLB932001401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6da512d2d8598fa06cc055b5f38958dbba5db7fe53cb3a31f6e1d4f65b75b9f. 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/USH6Z2100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce5b9b3bac0523dcd0621ae3760326aaeff79da79cffee45a55528b6edbf912. 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/TCAIF2482188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86eb5ce79fd4d385384dc4439fd520a6384f9081d6f341e7ef7152c6652a1e7. 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/QM4TX1940719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2f44ef788ee52724f0fa265b4c374b7b8c54407261364a921a9c34f2d68974. 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/US4R30602419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115805edae3ca40b23371d72b9cad31a1384a4700c3146bd638e4f1655cabd08. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/US4R31335475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ac4b134aead4e3b9e34b4ba4606cf3d2a413529321434e097e553771fbdd66. 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/US4R31335476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe5068990bcc7ee4741857c0daa2b51a0965e861b9cd674344f776c4115aa15. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USH6Z2100072.
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 0xb88bf690cc44391a7f3d64447328653ff8221d4e0cdf80a7b9214a75546ac6a2. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USH6Z2100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689e6ce0efcd1802f6ceca05451b079d646bfc1d151b7faff62c6ec284bd6593. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QM4TX1849974.
Strawberry Fields Forever - Alt. Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e22c882e825c41014ee210caae9811f4b9467d3a90223a09a36745090e11a20. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QM4TX1940716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8a5fc471fb2cd0038d58e914597fa0dc49975f2deaf624d5870a81838876bb. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USH6Z1600176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9310a183111896b42aae4cc792ad06b66f41ca365193e9ad08edf9745b5616. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US4R31335474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b81d5ceff5a41dd6f364c846301d14dc53257c0a956deec0d08663d197b5be. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US4R31335477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762fbd402c0e778d7a08e14393f5f9d1c24cdd14cb3f8262f8c2853aee853886. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/US4R31335480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d10c0ce59b2c52848f7d924b716844e9830676a940cd8c9fbaa8e703ab4d61. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US4R31335482.