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 0x10e9fd154e66a1aea3d45541c6da95b8baa2ebaab018d0b056a007598c8d9709. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1664f5d4-f7af-4cd6-a852-4022abae9015.json and https://artists.proofprofile.net/proofs/artist/1664f5d4-f7af-4cd6-a852-4022abae9015.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 0x53ce05781ed435ab9a4d89a685eb1f621f0de2157a3a69e0dc09c955a97aa6f9. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/HUAC52400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c059a194d77da1e4071936d5db873af2c17948bd0e4622736cb652d5d345aba. 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/HUAC52400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54e5ffbeba1233269e1e83fbd3bf271278dfacde896e31c39ff8ba2b053941f. 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/HUAC52400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a729d73fba13826de6f3776f8bd2b0b8367b71b70da917caa8141aeb4790e46. 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/HUAC52400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13970dc9e0e34af4072d33601e53f2226b629b04042fc0683bcbe7c760a067f. 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/HUAC52400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aefe33c5dccf81a1a3fe2fc787934c853c1a01fef790e7380d035261c9e131. 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/HUAC52400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bcf5d6319e13a94507020969912d162b72f52e309a080da9037089a55d72a4. 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/HUAC52400003.
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 0x6fcab27fc2c795d3624df78713d86c4361c10d9de13692a799dfb267a4841b84. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/HUAC52400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d003a686b3447907536bf5986e2c9fefdc8b48e71f5c98bb4599f30e0c6e3f. 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/HUAC52400006.
Gettysburg Suite: II. Day 1 - Buford, Heth, Reynolds and Ewell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a6dac736fc44d92df3b16aa6d8dee67e06efc792c2cbf436aa23108ef2b95b. 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/HUAC52400007.
Gettysburg Suite: III. Day 2 - The Peach Orchard, Devil‘s Den & Little Round Top
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f979a1a1d2a2a0ed777b376e97accb0a4c21f06a61a3f845afd1d048e89a4c6. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/HUAC52400008.
Gettysburg Suite: IV. Day 3 - Pickett‘s Charge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa23fee7449d311013e777487230435d232db62b10c61f5a43cd1cfecaa9a120. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HUAC52400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a38ac115417fb9fcd4b3dcb3cec00d565a2a66bbc72196a110458d1b34b670. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HUAC52400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae2542aadf5bf54dbbc354c0f7393f86f186543fccbb4ba92289dbadba3d85b. 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/HUAC52100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3937ab9b122069082516169a1d09dc004a1ad57f8b39823f5ed44959ee1956e. 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/HUAC52100007.
6 Organ Sonatas, Op. 65 - Organ Sonata No. 2: III. Allegro Maestoso E Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4404628656e883ed4234cadd37b70d3ed442a6356faf6315399b80936bf03516. 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/HUAC52100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64492f0bd45095b496f6f9a9f9fda35ef25a57c04f684d717333270d145e52c. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/HUAC52100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c275abdecdf08af93436a2df1c6fd2d992ba9521d4510be78dff238411f4191. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/HUAC52100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0eca742d70c389550b3ff07c41a5ad2031c88ad90cb82126a2149117faef6d. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/HUAC52100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb436efd7a4068f4ac1d4fece8cbe04ad5df82f6993da8a9a53f406c537d73d. 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/HUAC52100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075da938ff8fc4178a6a35b200319b65576cfc8bb29a2fd364e8a5c03bb74e71. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/HUAC52100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfbfa82217e44d722d011dff8b91437c9b6025acb92d8a4e81abe059848f938. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HUAC52100010.
Star Wars: Main Theme / Leia's Theme / Imperial March / The Throne Room / Ending Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543f812c17c86daee203467036ede00271a365582c99d610611e15eece746ed3. 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/HUAC52100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b0dfc76d468db22800a4c5b5a0e6fa32a18be94885dfd0a344ee6ab917639c. 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/HUAC52100012.
Concerto for Tenor Trombone: Cogent Caprice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe485453074201d135c12f2bb0c2c7145a91b1b357a0d892a542f730d17b109d7. 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/HUAC52200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfadc0d51f29f7ce06c907cb24e3af173782c4cd9fc115cf6058640f447b4fc8. 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/HUAC52200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf561fe08450aba49d8db36c6cc0e587a760c10a8dbdfa57595f6f3b27668a897. 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/HUAC52200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22c7cd7fd57486a8c36a87ab2c5c9066267f2add6a489cb32442d83b9aa7710. 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/HUAC52200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a08b1e2cec585c8723dd549735f92ae8293a49189e11cec37b91869a4ecf79e. 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/HUAC52200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf375ef8c781a9ea1ef9e4aebc562fcba6023b2bed78bf0e72b1a36b380c1f556. 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/HUAC52200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19dcb5c32cb5a5c65b7b524d64d0a4b572156f41d74cbb6ea52f0dbf3c7f46f. 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/HUAC52200009.
Far from the Home I Love (From "Fiddler on the Roof")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9d591c9dafa65dc33ad253a33cf76ab868ff9e36f6aab364dc809b87bacba4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/HUAC52200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6cee0ff409a390c2f08dafd2eb173bcb032ebc864d3436d36b4c7d5d14057b. 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/HUAC52200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afebe958b3492b4151af86316fba6bb040a1b6b2c7e234d5ac042d42d80416b. 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/HUAC51900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3f837a616ec333fa77018f0f3be02e2929877812dc0c0bb21287439b76c082. 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/HUAC51900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd097b69732529099ab84007fa2a5c97818ea9d222c8e96541def38f31ec9fd51. 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/HUAC51900003.
Axel's Symphony (Arr. for Trombone Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf967f26b2756b7abebfda7bd575f6229e646193282292b09eeb6260944874a5d. 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/HUAC51900005.
Lohengrin, WWV 75: "Elsa's Procession to the Cathedral" (Arr. for Trombone Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1fd69a8b139f30040f0fec874a9d1ac46001716108ddc638f7335d431f9c67. 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/HUAC51900014.
Bolivar Meets Granados & Marcello (Arr. for Trombone Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba36c1c6a2694609cefd52cfcadc327562e6df3e5d6977bcabff65a2c60db23. 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/HUAC51900015.
Jack Sparrow Theme (From "Pirates of the Caribbean") [Arr. for Trombone Ensemble]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ab5003eca547403a03d94597f251eb5cfa6517df5c13cc507ab3e9fafab851. 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/HUAC51900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b4d291ab75012ef89bdc493a920fdae18a477121773cb199eb644826a40f55. 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/HUAC51900022.
Uptown Funk (Arr. for Trombone Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc307be18734c460daf80c9269e9ebb68f232790143693cf1c732c6d2fe68ca4b. 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/HUAC51900025.
Gottes Zeit ist die allerbeste Zeit, BWV 106 "Actus Tragicus": I. Sonatina (Arr. for Trombone Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d27c86d510a762d252cbb3e6be3ab553e9a68df9e64f151b3667719c494f6a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/HUAC51900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9a2fee024bfa4a59148dfdbdf8da732385e1bfcc8a9d5b5694f3cbc764b039. 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/HUAC51900020.