Michael Hamilton may refer to: Michael Hamilton (politician) (1918–2000), British Conservative Party politician Mike Hamilton (athletic director) (born 1963), former director of men's athletics at
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 0x15963bc32c29b262f27dc2b372a3ad6162509467494104f3b59be2d3a1bf10ec. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dce2b35-ff7f-43c1-a24b-ca1231a41362.json and https://artists.proofprofile.net/proofs/artist/5dce2b35-ff7f-43c1-a24b-ca1231a41362.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Children's Birthday Party Music (Nursery Rhymes)
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 0x277b837c425870447551fe1ca940fe5388f9c90775fc104396fa9d5b513e180a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR0W61798663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e101bf6aaf8ca2c11e332c1aacfac6021839182a47c2c8ab899834ec30ec2cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR0W61798669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3181cff01c97006f5883b7145ce7c572435f25e5f903cd8377551ccdbf61940. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR0W61798670.
Playtime : Here We Go Round the Mulberry Bush / Pat a Cake / One, Two, Buckle My Shoe / Itsy Bitsy Spider / This Little Piggy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc23b4e495a958d540e9c213a807020406d5ce46e3b8a33f44c3506f7b5458e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR0W61798672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a7f5628935ad2b64ef63959fa5e26904a6bbe2ff18b4e6b083293602fbd5e9. 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/FR0W61798681.
Just Plain Silly : Jack and Jill / Three Blind Mice / Rub-A-Dub / Humpty Dumpty / What Are Little Boys Made of / I Saw a Ship a Sailing / Moses' Toeses / Peter Piper / The Cat and the Fiddle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0bd0777263bbe7a3c6783e7753fc3d048584b3d65761e6ca50f4e7d0e84ec1. 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/FR0W61798680.