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 0x71bffec990a56c6c4c1a7ca9e75b8da7716c57f79d144b3a9e926453c622ccda. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddfce564-a455-4e8a-8678-8f13e1c2fb01.json and https://artists.proofprofile.net/proofs/artist/ddfce564-a455-4e8a-8678-8f13e1c2fb01.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc8e812fd81f9b35d32802217714446a4081a5cec620a7413d16064a9c10355. 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/SEWDL0640122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42561b8aa10bfdbcd5a3d51e2db98bac3558c3f57e43749d767db1f6ea02a9bc. 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/SEWDL0640121.
Household Cavalry: Regimental Walk March of the Life Guards
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80c0551cc0d6b1b656487a89ca6524b161c985b1c968302573b410805b0e0b0. 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/SEWDL0641605.
Band & Pipes and Drums: Highland Mixture
The Pipes and Drums of the 2nd Battalion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fcac0e0e10ff9dbdf4c5d279e4974b0447cdd0239bb4f3255147f44bee6424. 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/SEWDL0640203.
Pipes and Drums: I. Greenhills of Tyrol, Ii. My Home, Iii. Paddy Mcginty's Goat, Iv. the War Veteran
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45dd8032fc2d00cdcc01b55c536eb8e73443520e9fca975cd296e2472942978. 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/SEWDL0640205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fb6a6e70dff5a014d2471b851f44d84f26050fd6f2ce08a6d204ef6a64af6e. 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/SEWDL0640211.
Pipes and Drums: I.Donald Mclean's Farewell to Oban, Ii. Captain Colin Campbell, Iii. Colonel Macleod
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9149c39059611f54e4877c8a3c3ee53c182971103c0d845603fd4083eb9714e5. 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/SEWDL0640216.
Regimental Marches of the Royal Gurkha Rifles: Bravest of the Brave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae19ba48243b4bf5a20f90fb24de4088ac6b528c263799afef4b3b51ea63ee8. 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/SEWDL0640228.
The Complete Scottish Bagpipe Collection
The Pipes & Drums Of The Royal Tank Regiment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ead9a95032f893e85d2e5e889a1f7592d344865b4fed1e9c454d463eb11ba63. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEWDL9571001.
The King's Own Scottish Borderers Military Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bbeb76b68441ea03f0ace4a1668897a48005e59444a7ebf98f0d290cf696cb. 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/SEWDL9571002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a3c991b75edadc197c6b54a33aee842f4e1a7ff7a3b94b18a5f6da27945b69. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SEWDL9571004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d8d079791d07416ba660fab69acdff363184f685d423070f604b3044908cda. 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/SEWDL9571006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2bd144bbf2d3d51404821bc392b618ebf2d7643bf68037df641b6f0c06b502. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SEWDL9571009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a697aa9b8bf46b8853bf2459a6474c6b630241f1abf49abef764aaec9bcd9aa. 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/SEWDL9571011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd94e65146ddba843c1a05f93b4c5292483d93f690a06f5c4383d9b159a24a15. 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/SEWDL9571013.
March Medley: I. Queen Elizabeth's March, II. The Steam Boat, III. Up Early in The Morning, IV. Kuala Kubu Baru
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c7fcac4e0a27137b91966fa743a585c389d670b611fff351362e240f365d4b. 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/SEWDL9571014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cf7feef597b185b8f3923d49f74d474e14ccce236c6b52ed290b182ea7d0b9. 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/SEWDL9571015.
The Band of The Prince of Wales's Division
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c252a30b8ac1145cf6e67d6d9b757cc1199aa33488dba76b3445eec6f4a73f. 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/SEWDL9571020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3040c4d6ca7f41ccdc4a04ab55f997b58e13c51d88537d7e2d18394c53b14eea. 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/SEWDL9571027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeabf058c419f54085bd0335f8e0616a287432b78496b09537a5d92cab1c9dc0. 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/SEWDL9571029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adebb7610333695fdffc225d3fc3d02776ac2da3caa3e4e790a4e4671c5926f. 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/SEWDL9571032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57b20ab5f4d6c1ea693bc61ee948e98cf996b8b2adf8a36522936ccf9169440. 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/SEWDL9571033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6934064f141192495c427397d2385ac34403eb2fbfcaec2b769c7f9d3db8fa40. 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/SEWDL9571034.
The Best of the Band of the Brigade of Gurkhas
Regimental Marches of The Royal Gurkha Rifles: Bravest of the Brave