Dame Sarah MacIntosh (born 7 August 1969) is a British diplomat currently appointed British High Commissioner to Australia and Head of the United Kingdom’s Oceania Network from April 2025. She previo
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 0x3486a85ee8001df0e9387c2005b5711d6ae8057ba55ead6fbecf3c79a69e34ee. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/100ac7be-2f83-45f0-98d9-f382f852f9f3.json and https://artists.proofprofile.net/proofs/artist/100ac7be-2f83-45f0-98d9-f382f852f9f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Waiters, The Watchers, The Listeners, The Keepers and Me
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 0x87e39c5f8dd145717c601184563bde4623a2a93e426a02b850a83e378b008ddd. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USX9P0933025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5be175a45c56680ccfb498d064e5718bbc7b2910e0892425fe5a0e81b7092b. 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/US25L2300266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0196f21578de9b7cfa003d2c17a667344b2c2a39ab6d1f8cccdcae57b2f9af7a. 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/US25L2300388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0196f21578de9b7cfa003d2c17a667344b2c2a39ab6d1f8cccdcae57b2f9af7a. 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/US25L2300388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194a8b3145aeea7a6a19ba5ab33db8c5ab69ed8ea3dae7fdadbc5184a228192e. 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/US25L2100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdb2bc31b5b67ee8d5993be7287bcd7bece5476e0cbbfbe8e6b6515fc0c5816. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US25L2100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcd9ad2ed8092fbc602793126381237839d2195a7e23df0e622c7bfc972964a. 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/US25L2400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23525e505b67e34fc8d86151a7ab57afb978672e6f45d3cd689207f293a639a. 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/US25L2400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323a550ac755dfe0f3fd156ecd16ce5808910aa22a214453c04155b7958ca4fa. 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/US25L2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5be175a45c56680ccfb498d064e5718bbc7b2910e0892425fe5a0e81b7092b. 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/US25L2300266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdb2bc31b5b67ee8d5993be7287bcd7bece5476e0cbbfbe8e6b6515fc0c5816. 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/US25L2100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194a8b3145aeea7a6a19ba5ab33db8c5ab69ed8ea3dae7fdadbc5184a228192e. 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/US25L2100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdb2bc31b5b67ee8d5993be7287bcd7bece5476e0cbbfbe8e6b6515fc0c5816. 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/US25L2100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcd9ad2ed8092fbc602793126381237839d2195a7e23df0e622c7bfc972964a. 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/US25L2400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23525e505b67e34fc8d86151a7ab57afb978672e6f45d3cd689207f293a639a. 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/US25L2400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5be175a45c56680ccfb498d064e5718bbc7b2910e0892425fe5a0e81b7092b. 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/US25L2300266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0196f21578de9b7cfa003d2c17a667344b2c2a39ab6d1f8cccdcae57b2f9af7a. 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/US25L2300388.
Rahab's Lullaby (God Above, God Below) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a099d0265c3b62d4f873e6fecd7edc46bfb7e131df96369e8988635e102809. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/US25L2200072.
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