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 0x5ddd0e3b5e8a8ea7375e616100d033244e22da6bba54be7aa45a6d24249b1ba9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66d6413d-64cb-40ab-bfaa-69113e13dd7c.json and https://artists.proofprofile.net/proofs/artist/66d6413d-64cb-40ab-bfaa-69113e13dd7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
50 of the Best: Classical Music for Christmas
Suite of Scottish Dances: The Indian Queen
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 0x9552e0e79374776f9999752eb1cf807c018019da2e8af51fdfb86d00c43ff4ba. 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/GBBJY0302845.
Suite of Scottish Dances: A Trip to Italy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276a111c117763d1b0a9ef3e10086aba862bd9ed53ae14ce7229efb66be919f8. 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/GBBJY0302851.
Suite of Scottish Dances: The Perthshire Hunt - Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139ae6e04e8dc613da3dc459bdbace878749162d59a9276d972e173574137dc6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBBJY0302853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e14da11c63eeebaa9ef345a8f961220e3ef35cd143f8d318bdae04bd88fa67. 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/GBBJY0302861.
Suite Of Cotswold Folk Dances (1978): Constant Billy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7efd8fc0dc71c138e137fdd524438de6a3956a25d40bb91d2ad81b85d7509f0. 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/GBBJY0302890.
Suite Of Cotswold Folk Dances (1978): Brighton Camp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e041e9cb9e54938da4ffb44ee7df9a5c2aff7de1e9575b614f27c2a4be4882d. 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/GBBJY0302891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3675484f42fbc581d0e9d3ed52311381841899bb7a046d1b03c7abacf3c2ca69. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBBJY0302849.
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
Suite of Scottish Dances: Colonel Thornton's Strathspey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498339dab3f0113e68f5bf3124896f8dbb67e9c442b0fed5621b27b22be8a1ed. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBBJY0302852.
Suite of Scottish Dances: Loch Earn - Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b86e6454cecdf6c376b546396d7d3740526070acba21c6fe78722cd1300860. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBBJY0302854.
Suite of Scottish Dances: Miss Ann Carnegie's Hornpipe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4745262a6e6d7f28a056eba9b46fc2245aca11e5866f9f4161a8ca9b8704ac. 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/GBBJY0302856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bd54531211669b590da5e69ea484b5c6779bad59cc98418c3f78c13606fd0a. 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/GBBJY0302857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dbe18f6c82374c3c9618792ab03cb8d7ac3f68fa264ad753f8d56c725f6cb1. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBBJY0302858.
Wexford Bells - Suite on old Irish tunes (1970): Lute Book Lullaby
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177869499304b08fb69aa313429d4890ef171e07ac6cc54f71e870ae235a339e. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBBJY0302881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4686fa3fa6f9d365ec0b02c09684de432b3ce06d9bf05a3e4200ddae04ca607c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBBJY0302863.
Suite Of Cotswold Folk Dances (1978): Ladies Of Pleasure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69526a78f0a0083a415dd8b2bef652209bc473cf93fb74e7f597af181e8bb1b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBBJY0302893.
Another Night Before Christmas & Scrooge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35737ce21e20ea82daee272b676ce41c32d7858e692adec7fd136cca26210ef. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/HKI190647805.
Out of the Blue, "Marine 4-Step or Eva 3-Step" (BBC Sports Report)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5592da09e90c76ac5ea49f48d54c40054d6ac80870d706d20f83688cfb108c. 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/HKI190647816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020715c6fb31cb05dea1c4201101ee461c8b084854702fbdcb6a029aa6c675f6. 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/HKI190647817.
Imperial Echoes (BBC Radio Newsreel, CBC Night News Bulletin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9736744cd63b34dd75497e1d1c5695e4ca421ef50e8d384c2a3ee04db81afdb3. 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/HKI190647807.
Worland: Tres Senoritas / Shopping Spree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c0811e2478c0e71bcd9cfeacd8eca03296602dd21f665e92bd900b9e021b65. 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/HKI199412216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5636ceb388948e27753399945261c7a6da8aa4b7433e30dee930e242c457d7. 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/HKI199412113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67df0056a76e12514a799a5639ed4b35253cd1ebbfccac546706f5891c318102. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190572105.
Elgar: Piano Quintet; The Spanish Lady; La Capricieuse; Serenade Op. 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119f943e5e6f38fb395fd19c96c7d16f06b0c31127285095674d1455c6e059a8. 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/USX761632108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f3886192b5d0d20bbbf24429df0ac08fe5493f5dd20f5e2815bb223cd4d44c. 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/HKI190572111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e14da11c63eeebaa9ef345a8f961220e3ef35cd143f8d318bdae04bd88fa67. 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/GBBJY0302861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02d80d11a8dd62143c87673ae3f0f38de274c5d0ceda17f44a152b98c926356. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/HKI190572107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e9cb0f97ec032ad52f034036a678481d95f9db528818d364f05598ce58c3b5. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKI190572108.
A Moorside Suite (arr. P. Lane): II. Nocturne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c52286376e0cd2ef11bee22765b28d7da615b79fc55735a868d729e2d5f895a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/HKI190572102.
A Moorside Suite (arr. P. Lane): I. Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a3dd73447f291cbbab309f6f828d85dc97da9b50a60453e642d9834fa55857. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/HKI190572101.
A Moorside Suite (arr. P. Lane): III. March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3868706a92b611276928460294560a0822bd78ec0939dab5f80488193af4d37d. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKI190572103.
Chacony in G Minor, Z. 730 (arr. B. Britten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc9cf569706614a9bd2833fe5c4e3269ad7bdc21c1e6cb43e0b3e1221b02a6c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HKI190572104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e83c939632618b9ec1cbb23fffb84d0cafa816cb2e4a9358a5a88ee7f40b1c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/HKI190572106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2204e8ef25821a285660cc001e57a10c9a3da0458ddca7bf45383affec5986f2. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HKI190572109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cca380cb390741ccb1f5daa0bf218cd1b7ee4985c4d78e56baa9c048b3e9ad. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HKI190572110.