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 0xcb8c940816467f6f471fa21bda91bcf4da7f00931168f0060d16eb98c472cb52. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42e15992-6b44-4066-98cd-5bc5e87f2159.json and https://artists.proofprofile.net/proofs/artist/42e15992-6b44-4066-98cd-5bc5e87f2159.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 0x381f3d51f49336c921a70c736d2025101e8b1b85ee72db9c3647fb80adfd464d. 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/GBAYC9002473.
The Nutcracker, Op. 71, Act II: No. 14, Pas de deux, Var. II. Dance of the Sugar Plum Fairy - Coda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45d4187f2cfe0b355af814b95e1508ffe273a02c7d3c85891047e6427edf88f. 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/GBAYD8200173.
Peer Gynt, Op. 23, Act II: No. 8, In the Hall of the Mountain King
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e0c671b9d44f00acd8906a9ed46d6cc532bd331168ab79693661193e7e307e. 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/GBAYC9000065.
Symphony No. 7 in A Major, Op. 92: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe584f235fe5e4e2df5d62e35927a7e7c2e06856851a9b51ade84e94b32b4f77c. 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/GBAYC8800649.
Romeo and Juliet Suite No. 2, Op. 64ter: I. Montagues and Capulets (Excerpt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ca0c7468c7f71aea84f35b3cd5b5ceddaaf00982d47534071eef482c984035. 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/GBAYC8100501.
The Golden Age of Light Music: A Return Trip to the Library
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad357db48aaf52053f3bd9ee2661dadc98e1b4ceb0d0e7f0ccec09c082fc827a. 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/CH6631158304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120ac425ef1bfd9961ad3b65b3a43fcc19c79b97fc28e34c448cd531f96b72ab. 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/CH6631158323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee571f123b100957a5868a195c14846a8e0662f71e384c7e182e36078d8c888. 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/GBBGL9400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea466e3a8ac8ee322b43d6cddf7ecbcc1ec9f6e83b8c02a2e045dd11fb9a6e22. 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/GBBGL9400577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa6db0bfe73980917668cbf4b38ceb5b2a5b2198fb8d67d41189fe9db24b3dc. 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/GBBGL9400578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662a3f6afd425c221d5768820e678c0adeeea7c2957ec5c48675e7c6a0c6b996. 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/GBBGL9400593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cfb8dbfbaf8e3f0f1b507f405d2d2d0602a283bd97214319296da16618a76a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBGL9400596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4117f24294284ff6b4b237ea4770a293b472d7e42b65fbfeb38974273cca5ee. 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/GBBGL9400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a66c5321fab6801ad4064c76fe9ea20751b56c3338eb4956ffccf7b75daa3cc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBBGL9400602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd05bb30f9bb327e4cee84131d441d5a59fab1764327b8678e166e511f1aa944. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBGL9400610.
Kpm 1000 Series: Archive Series Volume 1 - Light Atmospheres
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67950689e3eff916f5abeccc872e96152d1a63980cbd91f28e6c2cae19b8284e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBBGL8000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940dea2609e3d5e5afe326000f4af7952f3e4c4192772c59a9d13b21cb4ecdf4. 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/GBBGL8000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c158ff0da186e7f95fbcee48918fcff18ed449e8baae5a25d65059a54888569. 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/GBBGL8000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0a01e5cd9291723de7aecd58043db6d2e1883957e6e5f47508e88572ce70c2. 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/GBBGL8000221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf686512f568d9e61e21a766eff76cf937480e3a97b37e71fc2aa2e0286337de1. 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/GBBGL8000223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de353fda17c6663ed1ddced4e61730a1d85a01068a6d377909af4817a3e11c5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBBGL8000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5464df4d72e3f0b0c87c7e735da4969a861d6c3f63ae34cb0c53c5cb0f6c5409. 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/GBBGL8000229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7b5c79cc44ffa6ed3ac1c8548745ceb0a1305c436719a5a1d0a8db4a2c613e. 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/GBBGL8000230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0df6734572bfc01a36ae66922670f44fba25ed3da98fbd623670f2ffc0a9d9. 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/GBBGL8000231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3d70755e4d9a32eb39549cd82a617332857297805bf5cf5df0256b2f1889b1. 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/GBBGL8000232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac92fafcba8032fcd4341a00885b9c0303af972d6b94f84f53e0a38435e4325. 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/GBBGL8000233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c53fad2ab3d592de65da2368c2f3937e8bbd1f05ec8d77ba3f5d2592596d9a. 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/GBBGL8000234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079e003b2cdc76453f0e8b89d086a332e16b1335c456b713220d6ca5aae32b08. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBGL8000235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcbbf4383471988030ed6dcdf2a8cf646e26047beff89a12dfb805c8c39dca7. 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/GBBGL8000236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe406bfd46599a42cc98cd0161feeb4e2a03c077f2ff4ae3961889698458792e8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBGL8000237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfd99818940cb171d1c9909da4c1319b86f268bd755a5f17e434f288c7e653d. 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/GBBGL8000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694e31d2675c1f6ae8aa1e83263a9fd21b4a0807ef35592a3ce65f64ccf329dd. 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/GBBGL8000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57ec5652a7dc9df495096d4c27fd2d443cb5cee9dff94a3f4cde5da318dc17a. 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/GBBGL8000240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dc62ee7329c2e7ee25c289d07345157d25d5484ff6758ff594fd194b06d181. 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/GBBGL8000241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f98f98191f4412fc72f5acbe7afebb1d947fff99a1ee37a1561af267be32f7. 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/QMGXA1443056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07cb65ce9ad9a3a6c379320597b2003412d07a3d238cf87bf590970edccea01. 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/GBBGL9000400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775b45aec4e9440c885e30918f34b19be0ed5c399819e072f03ed9b1444b8db0. 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/GBBGL0801528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcc68ca1239cb0d5b886dbf4405ea9d413e7319b9c4d2db4fc2e3d52bbae38c. 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/GBBGL0801544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7154bf4eb25d535c96ebb3bc04d3fdfb4ede9f14e9ba3850ff6ab5a431aef0b6. 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/GBBGL8000256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c53ddc45d7f6dbb6c99db804ff7d175cb7e1e038d46c0731268f2dd843f870. 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/GBBGL8000265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7330aaf8110baa2d41f1710175b2a91e5da4b6b2c3547258b24a351ffe68a0e2. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/GBBGL8000269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf328ce94dc5209e16c80fa2ca29da7501cababf3135273a5337b357cb4410cb. 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/GBBGL8000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4294b72936cf4922a30ed723587ac0ac8cab68fc3602c1f1845bd5d80f8659. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBBGL8000262.
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
Bach, JS: Toccata and Fugue in D Minor, BWV 565: Toccata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c819dfccc242b441d8cb26cbbc73887f7945bb57d047739988061dc6749ef56. 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/GBAYC8905893.
Bach, JS: Toccata and Fugue in D Minor, BWV 565: Fugue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaafdb9f8b2b21bfdc03f0b312d0457284f8f0f2f2af520ab1f5ec15ae99ed72. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBAYC8905894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc400842c9c8c5a0513b51b2ad62804d084ad5a1c82d3397cea384426f89e07. 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/GBAYD9100484.
Handel: Organ Concerto in B-Flat Major, Op. 7 No. 3, HWV 308: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baf0081d671f5b3c3b301d46b6b0abef6cf39b60ceb6bfa099bdc9d1a140ca1. 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/GBAYC9801923.
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Mendelssohn / Arr. Rawsthorne for Organ: A Midsummer Night's Dream, Op. 61, MWV M13: Wedding March
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Schubert: 3 Marches militaires, Op. 51, D. 733: No. 1 in D Major (Arr. for Organ)
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Saint-Saëns: Fantaisie for Organ No. 1 in E-Flat Major
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Hollins: Concert Overture No. 2 in C Minor
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Symphony No. 5 in F minor Op. 42 No. 1 (1996 Digital Remaster): V. Toccata (Allegro)
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The Band & State Trumpeters of The Royal Horse Guards