Empire Brass is a brass quintet from the United States. The group was founded in 1971. The original members met at Tanglewood Music Center (in Lenox, Massachusetts) in 1970. Description and history T
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 0xda8159d613da2ab4a6a9dadc30147014eefae338a1ca9fc431508001ceb99c4e. 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/b41c8fca-a3ca-4cb8-9371-749a0112ad73.json and https://artists.proofprofile.net/proofs/artist/b41c8fca-a3ca-4cb8-9371-749a0112ad73.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
American Brass Band Journal: A Collection of New and Beautiful Marches, Quick-Steps,and Polkas Arranged in an Easy Manner for Brass Bands of 12 Instruments
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 0x33d6abce922e910b36bcf7334c43d178962b53e127a3564675e6dbbcffc3425c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19921666 — a six-check JSON result.
Empire Brass In Japan (Live at Hitomi Commemoration Auditorium, 1986)
Carnival of Venice - Trumpet Solo Feature
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bc0d582af08a9975019f8fe99e7b96df4b00fba9c8eaea6505b96212741a55. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPSR08628830 — a six-check JSON result.
La virgen de la Macarena - Trumpet Solo Feature
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadb90ec94b9dba3bfb815d865e0b83a98c01efcd6318b1a4f169da9d6990414. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPSR08628860 — a six-check JSON result.
Empire Brass Plays Music of Bernstein, Gershwin & Tilson Thomas
Class Brass: Orchestral Favorites Arranged for Brass
Royal Brass: Brass Music From The Renaissance & Baroque
Braggin' In Brass: Music Of Duke Ellington & Others
Romantic Brass: Music Of France & Spain Transcribed For Brass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8fa61e7ef9d87d8c1b2252f6853f1f825654229ad07adbbfcee63ed6d3f2ec. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10411355 — a six-check JSON result.
An Empire Brass Christmas: The World Sings
Joy To The World - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf315e231e3b3a9de8a441426f0221234d772a0cd3f350b40f7342456d9c992a2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550139 — a six-check JSON result.
The Holly and The Ivy - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35106d7add3942e923473a5a08c722ca3c21b3a95c5ceb032c107838fdec8489. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550140 — a six-check JSON result.
Medley: Away In A Manger, It Came Upon A Midnight Clear, O Little Town Of Bethlehem - 2005 Digital Remaster; arr. Frank Denson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2972eb86ed6983dd33a8b979b7daeed5f14598dd1c588107649590da4795d7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550141 — a six-check JSON result.
The First Nowell - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bbf7f65aef2019ec0be963390c73ab3a92b067f5d2367f35cfb4155ff556ea. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550143 — a six-check JSON result.
God Rest Ye Merry, Gentlemen - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887f2f7515f99cb2f00f2c6f2f7995d82cd1b18416066ba6f8d71db0e3faa1f8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550145 — a six-check JSON result.
Lo. How a Rose E'er Blooming - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468118523061b095c8eed6620d502a81de5a26faea822eef307c4f7b096df303. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550146 — a six-check JSON result.
Make a Joyful Noise - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81145c57cf419765f2144a7a4d30565f36d1f74e4899c730bcefdf8f080f37d1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550147 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae419d3cb687c44443447783dc61554a9e045a8aa37dc6c58ccbd8529da9e35. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550149 — a six-check JSON result.
What Child Is This? - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bea68f8a5e91989ec75018d46b685fe1385299e60bc2a172d42d0661c293f8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550151 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c493113083ac214dbc47f603d4c035c52522cc42e1e721c21e846a426ccc496. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550152 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43e803602711aaa9d7221069fa828fd5d6841e7d77b74b69eef55feae7a7f30. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550153 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73a9e7c5c8ab0e80addee93d81bb755316d09c0c10429b6ae467bdcd26faf56. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550154 — a six-check JSON result.
O come all ye faithful (Adesle fideles) - 2005 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2228b4cc51cf4787c9b02f2972cd03d9e0f33634ccc9dd46d82d18faac66b66. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR20550155 — a six-check JSON result.