Sarah McKenzie is an Australian jazz musician. She is a singer, pianist, composer, and arranger. Her album Close Your Eyes won the 2012 ARIA Music Award for Best Jazz Album. She was also nominated for
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 0xb4b1dd6e4ecc60db320ea69fa392de45dc70b005ce5cf152c1ae37f7b426c607. 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/dbffc61f-fd21-4f7a-a5ef-7dee3e2ca0b8.json and https://artists.proofprofile.net/proofs/artist/dbffc61f-fd21-4f7a-a5ef-7dee3e2ca0b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You'd Be so Nice to Come Home To (Arr. Sarah Mckenzie)
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 0x3cac88edc045be309ff502a3ad0ee1e9765ed69f608349af993bae0dc1b7d736. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/AUAB01150241.
Love Me or Leave Me (Arr. Sarah Mckenzie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0184ea20e57b6346cd66ff3372939bb6b8f1f107595cc52c2fd3195906c2043f. 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/AUAB01150242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671698ee7380014d81a948bd3663d827766faa749c1ebd743b19eedff71e3347. 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/AUAB01150243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5889ecf0f394389d1aa4c24abb5e92e1bbc5cc65627d4f0898c552cdc00ce12e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/AUAB01150244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5662ebc6e4c59001a30251bf3966939c11146750149971a18235154feeb02a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AUAB01150245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ba161bd2854321d2ce3819da0efd3bda46cce14cff1a8b857f4ef344b7517b. 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/AUAB01150246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aa2f8af127ba3a5a809042b5d37cde46cdef571e78ed064189f1ffe8644598. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/AUAB01150247.
I've Got the Blues Tonight (Arr. Sarah Mckenzie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1946cefcfc849ea885102ed732e628b85f0632d8336278658eb8153a7233e10. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/AUAB01150248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b937ba833d755d7dbae9de86515d043a904c597146f653963ce59049e026a9. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/AUAB01150249.
St James Infirmary Blues (Arr. Sarah Mckenzie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4970fc4020b855815f7b30581391b00e141d7ae9806485ea73ec8c73f6fbdf7c. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/AUAB01150250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63333b2dc14bd4cd85d05d61785655dc7d52a7e0b4859e79d36512244201357. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/AUAB01450298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4841a0c9c56192dda2f875d0bbd588850a1d820929e1c0a5969b0f4555f64e62. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/AUAB01450300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54564675335df29c763c85f2f2f5ef953d475b9a5c1d76ff73c1f96cea4f62d. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FRUM71613026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccf174c3228dfa12769f7cc56f4d18051b055c90ee14ff68b05ec2db5fefe36. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRUM71613029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fa2e991979a8f2a2115ee2df106c9b69bc76c501dfc81f486917a30bb361fa. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/FRUM71613032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6d94b507178e8906b4c69e19a55cc7468f8988024dcc690e4127856ffc2ea4. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/FRUM71602056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55f7e9b750166778f81622539c54d23e04e3c60fa1802dbf2a682901f02d38a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKRMK1800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75225058854d6cd42ed9f77c2308a512849a550e3edf52c0b8c97738585a976a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UKRMK1800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be79f5ff492e14d909b69a9cfa525884bb2b404a3df184354f759d09ee055ac. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/UKRMK1800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c78a8fd828f771ca98ab6ec7f8802a888433e91b462ccc2e560c0f540c5c933. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKSGS2100508.