The Grimethorpe Colliery Band is a brass band, based in Grimethorpe, South Yorkshire, England. It was formed in 1917, as a leisure activity for the workers at the colliery, by members of the disbanded
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 0x855e51833ef1b16ba8ce09a3e308b30a828d78c4d0c73ead3fab05e24ed66653. 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/14096be7-0870-44e1-b74d-83dbbd3db5c2.json and https://artists.proofprofile.net/proofs/artist/14096be7-0870-44e1-b74d-83dbbd3db5c2.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 0x0ec50c42647bff7f227fb83ac22ca5576e13784dbf6537c475de7afb16d47c67. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBLWD9900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a0e134db731b1d4355dbde85d3274fc8110b609d2506a964fbb1452c6d0bbf. 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/GBLWD9900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c7b1fd08bb5bd42508b188920d10de5c70ea5e266bca0181fff959b0f0e9b3. 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/GBLWD9900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bc9941524e50f4a74c010a6c57d92fc99e3b5284df0f53d5aa1a7576b198b7. 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/GBLWD9900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd379bfeb16cf269889da6c8df777474f8b7f5df03292b3eb4e86d85c9c3dc36. 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/GBLWD9900407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb4144884785e60117ccaaba1dee24033c68d40c49a0ef474bb42e6c5197cc6. 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/GBLWD9900410.
Overture for Brass Band: Henry the Fifth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820686249af0f859aa6044fd2b5f4679c4401f88fe0d9a60d9a8e47c4f28b64b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBLWD9900401.
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
Rhapsody in Brass: III. Allegro assai e giocoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72687c900e92540dca33ba5e0ea6c9eb472315ed2b1552788b5073f168a44b5. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GBLWD9900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b02d8bc3604fc7bbdc8fa1444b119c49c9c4018631fa60194654a9ac3c75325. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBLWD9900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317fc49a755d67fdfc133a5a5a4b0ad4d47057e7a2a1a318740701e1a6b67300. 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/GBLWD9900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65f9c919ff248e5fbb462c63a0fa5bec55d23ca20846fca38d3de57147c4e36. 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/GBLWD9900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c64cf1a44dca188f418b785d23e0368444266750f8c69679118d8ed00e3b8f0. 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/GBLWD9610001.
Concierto de Aranjuez: II. Adagio (Arr. for Flugelhorn and Wind Band by Kevin Bolton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48ced72ffd7fcb3e2f8dc69963a1f191d240b69fa94270bd130331ba62c7e1b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLWD9610002.
From the Shores of the Mighty Pacific (Arr. for Cornet and Wind Band by Roy Newsome)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e20c224bd48a5b342fb2a39b444235d629d7133c8c6b6bd5913f5d88acb775. 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/GBLWD9610004.
The Lark in the Clear Air (Arr. for Tenor Horn and Wind Band by Gordon Langford)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b49c062afb2fd5a3a5252c585edb09dafc51f87f2c5329f5204c681ba6356e. 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/GBLWD9610006.
Pines of Rome: IV. The Pines of the Appian Way (Arr. for Wind Band by Howard Snell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf260d9b8696ea86f2e24abc26ccdc684c28ad68b827f5b058da00c517a2cb80c. 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/GBLWD9610007.
Riverdance (Arr. for Wind Band by Ray Farr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3913a3a7e3f62ab1944bcc98013402a1a04f10370962d1e0322a950a350952fd. 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/GBLWD9610009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38f801533c4779fc9353571d50c61d5da2761ddefbf0813cad1eca037a28b80. 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/GBLWD9610003.
Abu Hassan, J. 106: Overture (Arr. for Wind Band by Gordon Langford)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bb67561d6a7a5fe1bb9947b96622b927fcdef55871577ea7f9454e9f697cd1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBLWD9610005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eab8803fcfaf35e64622a63c4ece75a38e5cef82e78153c8e4bb7904d8bc23c. 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/GBLWD9610008.
It's Alright With Me (Arr. for Wind Band by Tom Brevik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b656f190a31643b53597283864b3b387f2100a06eb8b5225a8097b48e7613cb. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/GBLWD9610010.
Barnum and Bailey's Favourite March (Arr. for Wind Band by Peter Roberts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf233dfbe3cbe63490f5c7b71025dcf5577c41591f61f4922c1cc14cd0f845b5. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GBLWD9610011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63f34135028d8479ebcd27d242af3465776f47e1cfb86533c75358eef58cb1c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBLWD9610012.
The Malcolm Arnold Edition, Vol.3 - Orchestral, Brass & Piano Music