The Band of the Corps of Royal Engineers
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 0xfe9dfb174843f4ec29d635acf60299d1af101daa7a8a2d32a5914f50a615d694. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0d858b3-ddd9-46cf-a92f-bc295527a421.json and https://artists.proofprofile.net/proofs/artist/b0d858b3-ddd9-46cf-a92f-bc295527a421.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 0xe9b38d88386f6fecbbab64d40bb19f1f6b7166e4a2e5736fcbf11721ac9f56ed. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SEWDL0652335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625bbed4956212e03a40c37d04cb58d01a0c1f24d0bd8ab2d8b5cb02dcafaaa5. 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/SEWDL0649108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41197fb3bbd02ec80961df9e284a381b83792014de57899fd798293f51933e8d. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/SEWDL0643804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66daef458e7b1006189962a3e8d67b4af0a1c807db9bdf6e9abcde44f084a26. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/SEWDL0643809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f1fdc289bb7a2b532efa7b89315a0bd210cc30c90f815a1b1a59fdfc84e8b7. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/SEWDL0643821.
Music For a Ceramonial Occasion: Rule Britannia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe243cd97bce123c62243d4230269c368b9311d9f4682ee6d4b5f03e35d37f51e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEWDL0643824.
Music For a Ceramonial Occasion: Land of Hope and Glory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc140d7f6931c39e181cb47361cec48741547feaae979e6f7067b9d949db9bf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEWDL0643825.
Music For a Solemn Occasion: Abide With Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea61c74404d3a805e0e7b5bd277dac08e56c0e9693c9e8710ca8a5a347c74676. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/SEWDL0643828.
Music For a Solemn Occasion: Funeral March No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78b48a3308d8cff0e221030bf36a3efefb961b33d59925e4ca0aea674ee46b7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/SEWDL0643831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52051889bbc039521fa35f76342097c667d8bb0e01e1a8925ac960710c6dc27. 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/SEWDL0644011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce0ef7424bc0d4ef8345f7032606cd64a826d8527c05ff9b51399d65659562. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/SEWDL0655801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3dd11307291b1dec9f5105585c4aa9dec1f8f477c65d39765dcc2245be7e58. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/SEWDL0654601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f79a647992e1f49fd072a17bde9066606b0184bfa68cf747042881e06147015. 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/GBCQU0602416.
British Grenadiers / The Royal Green Jackets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed699bcf4ec35d5d4da2bf85207a79b56d288cdc79e4d85b29751e9c53050b3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBCQU0602419.
American Celebration -The Most Popular Military Marches
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd84fca628d4179f30f3a25b6a81d110fd947460db22dc4cb0d9f8fd097515f0. 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/SEWDL0652312.
The Band of the Royal Military School of Music
The Fanfare Trumpeter of the Royal Military School of Music
Kneller Hall - The Last Night (Live / Vol. 5)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb723d9c55fdca3fbc57dadca63514a3e0585ddfeff57a577d8c53ae17736ee. 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/GBAJC0400088.