The Alexander Brothers were an easy-listening folk-music duo from Scotland, who had a long career beginning in the 1950s. Career Thomas Armit "Tom" Alexander (25 June 1934 – 9 January 2020) and John
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 0xe9d578f288fe6bfa70b377f58b687ace8280fdd3cd9b008c9016ba761fbea171. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b6a6c41-99a0-4d30-b329-14a80ea59b02.json and https://artists.proofprofile.net/proofs/artist/0b6a6c41-99a0-4d30-b329-14a80ea59b02.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 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 0x85b4367392ddfd83d9b6fa72fd352ca828c05451187c89d3b43f89ac75e0ccf4. 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/GBAHX0600468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb60ad47e0432b8a65369e92a2b14f920ef314d2cc93583ce633acd8db462fed. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GBPQM1202017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05619ce434a5c8eb4d93fdf30b7962230247783ccac081067506040269aba16f. 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/GBPQM1202025.
The Alexander Brothers:Two Highland Lads
The Best of The Alexander Brothers: Let's Have a Ceilidh
Let's Have a Ceilidh - The Best of the Alexander Brothers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd820eada263b9fab764fb8cf74fd11f96b8ac6fae99e41733b5d9a90ef280818. 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/UKU6H1942108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0b2e7d52e2fb901769e99244b126d34de6c4dd56533c790fb16f6295fb5f5b. 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/QM7281781637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cd3f33e2b0ee9d76ba3906f4b009b8e1a95522c817b5ac8faa4c5fd7de6692. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QM7281781641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8e9deab0ec60d1cf471079564453d63ba999382cff4648869fcbfea7fdcf60. 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/QM7281781643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5884354521ab08f352fa9ac484c326a5073a1f97546fe7b9a0e2c432d88ac55. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QM7281781645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0e17a44437e4dde605faecc0b588da0fb61ae27ed902741e615559c2e952dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM7281781649.