Raymond Douglas Lawrence (born 1943) is an Australian organist who is director of music at the Scots' Church, Melbourne, and teacher of the organ at the University of Melbourne. In 1969, Lawrence co
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 0xe108db8bc2f34d3115b32330df77534d886ef72bcea7687091cc90b6ecac9ee2. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41fc7e73-973b-4bb1-9400-afc8205cdac8.json and https://artists.proofprofile.net/proofs/artist/41fc7e73-973b-4bb1-9400-afc8205cdac8.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 0x96e26788e888e319daea7e31ba908b04680d85bcd8b3f511b180400b856dd316. 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/USB8U1700937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2920f33cc674e85f2111392c9fdb22f792b877267dbcccb807192014a222d3b. 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/AULZ02091604.
Rejoice - A Vision of Christ Through Music
4 Motets sur des themes gregoriens, Op. 10: No. 1. Ubi caritas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7182f859dc8d4051af0de439f4f031a3d4cc4f753dc7936ec673cff4a564183d. 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/HKI199243010.
Requiem, Op. 48: In paradisum (1893 version) (arr. J. Rutter for choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcded5f79d883af102ab0b6fd592d8a47e5519403e101d25c1c7be822d5c62d77. 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/HKI199508207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dab00ba5b851cf4a2ee1f694193b0c52d7c27de8a296a6d8fc1ee63486ac111. 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/HKI190235506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e56495dad05bb06c46d48cdd47e1ffef84a1ca1a3394e688e1bdcce61e9d67d. 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/HKI190471011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558ce408735c543b93f607fa0a857170b85c559dd04e739b47f5e39138151d31. 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/HKI190246409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ea9e414f158e5e9da2c68126c05e6966f9f8625b2cf32e78395b2523f534d0. 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/AULZ08910411.
Shakespeare in Music: Classsical Music Inspired by the Bard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8c9e3881cc5d0f8ab6b1f98b22deb57435f8e77b6b5adbccf5cc88f6bd0115. 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/HKI190049611.
Chorale for Ascension Day (Easter Chorale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0c73601e1e45a04181774207c2443cbdcbfc8c51e5f4bcc741c994c78522c2. 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/HKI190235514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dab00ba5b851cf4a2ee1f694193b0c52d7c27de8a296a6d8fc1ee63486ac111. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKI190235506.
Let down the bars, O Death, Op. 8, No. 2: No. 2. Let down the bars, O Death
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f52fba3c1294e15b02ef84fb18dde3e0c03d03ba27b8acb7cfc2a0dfc602f5f. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/HKI190235511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee31071d728b3fbfad212c33bfb2727ef1dcc13e3965268a59372eece6b1247. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/AULZ09110901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e46a289be7c70bd9aaf63df03562d5567e9673a15745e56fe6f0aef3c61765c. 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/AULZ09110922.