Brass Construction was an American funk group formed in Brooklyn, New York, United States, in 1968. They were originally known as Dynamic Soul, and went on to record a string of hit singles and albums
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 0xddd48c336fc8462323ff3c11bef35547e46a8313119aebb259e4b653e28af2a6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff3850e3-0339-4cee-aadb-f89957fe07cf.json and https://artists.proofprofile.net/proofs/artist/ff3850e3-0339-4cee-aadb-f89957fe07cf.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 0x062fe5201355cd3b701f6a2142d9105fd70a8fc1865b2ffa70669893fbef2139. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USEM37500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd29e209cd589e9a3f9c1d9b266da6cee3b1691817df6f45ede7d02db019758. 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/USEM37500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03577034860bd2483480bf57354b66a75253cf9ee57b32b2a0cec412b4ed6ea5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USEM37500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb086fe5df21b843fb904f05985652cb2bec4a6442a7fd8e54c64b06b47f9d4. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USEM37500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82eba95a95f70199699cfa32b77c7f0839cb9aa338b536cf6f1e9256c7eba671. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USEM39100414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf1ef36d3a5d9e290830b6df874e7fa3ecef4b759fb03d364e0776c21b9dd5c. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USCA20900291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e55021af91bf95cd902f69d9a4989d8267cae87ed6b0c981c9a8e23180964e6. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USEM39100415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3280e5efa6977d8b89e5969afa00da9138aadc7ac76d7873c89881aed9f677. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USCA20805628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087401839e5e6347d191ecffb1fc9710d729aa439e6ff2f6f1af9206bf5f31a0. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USEM30000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685d9fae1d6bd9519af1a7374143b7a6909f08709b08508688e636e29ae7fd95. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USCA20802212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39d5ea80ebfad8f41952042c892e054478b443ab97f8a57860cd5c209ba552c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USEM39100418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7085b1af3e9958c089ec5c25a5dd15a6856c066e69d1ec9a1f102a88dd7f3695. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20701881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94ca32f007b21a57b00c1f2af162e76b74a1605bfee27b65f99806239afa76e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USEM39100416.
Get Up To Get Down: Brass Construction's Funky Feeling
Movin' - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b6e6b716c3e542c66aa9c0cc290fed93e7a6b56fbe3dd59b333cc67e8ae4d1. 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/USEM30100648.
Changin' - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fbcacb00ec680e5b0fcefb85eb2586c87dd14f80619d52d64786f888de1143. 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/USEM30100649.
Ha Cha Cha (Funktion) - 2001 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3407db7b08f98fc269af4cf478d39d0a6d3bcce80faa5dbfb218a5735fb0010. 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/USEM30100650.
The Message (Inspiration) - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b7c6a67fe08b5b92953a82bd0f025ba2e3fd1c7c3a506ac61315556d40c7c3. 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/USEM30100651.
L-O-V-E-U - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657908fe5fa0ae4e0be2a2cd4e8fd0802ae29b1fdcf5f15daf158355aedb6246. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/USEM30100652.
Help Yourself - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11379eae9e4bf61961b5c74b5f8a3b3ed59057e4cbb248de5398a8c7d7adc1ab. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USEM30100653.
Get Up - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e10f5d7e57825ca4363ff4ae1a211d7a9a7a2f2d996f3ecaaa699df2252dd45. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USEM30100654.
Right Place - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f2adee1c339d3bf217100a836e5b1de06397ce2f106cedcd9e29b7e2f035c5. 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/USEM30100655.
Can You See The Light - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818bd8a6c33a7fa9f60a950bd315b9e4c51148319730b07568ad0dddf25f1cc7. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/USEM30100656.
Walkin' The Line - 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52030ba7e724cf55292fafe5f7973c703aff0aa3246b8c430cb60f09450bc2b3. 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/USCA20101321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a828c82dd1f9245845838b146ec92488c9af300d09525e8c3d594e0ea1f1387. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/USCA20101322.
Partyline - Single Version / 2002 Digital Remaster / 24-Bit Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4acb8c3298d0bda383a74ced5a97d819c19025cd46930ce3efda2f7adb22b7. 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/USCA20101323.
Greatest Hits - Featuring Movin' and Changin' Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ad6da96ed0d695a341ac42abfb5dc986b90e4870d6f50cb6c823dd5f3e2e1d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/USCA20400335.
Brass Construction III / Brass Construction IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594a1d099607c245a1f8b7c1d31870def56db03fb0504ef6bc4d00b210cdd77d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITD541201891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33e83a750705f7b631a168101caccb556f0cbe1aca123324deaa54160c0a9dd. 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/QM6N21998798.