Ethnic Heritage Ensemble is an American jazz ensemble founded in 1973 by percussionist Kahil El'Zabar. Its members have included Kalaparusha Maurice McIntyre, Defunkt's Joseph Bowie, post-bop musicia
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 0xfc826b56dd729dbaf9794fa86fc465be928fca073c5bc3408f74f9754ead6d74. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bce162b-d194-4979-a46e-592d1a0dc9a4.json and https://artists.proofprofile.net/proofs/artist/0bce162b-d194-4979-a46e-592d1a0dc9a4.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 0x5c6cf05a39a537ae55409b852c946541b85a502777bff7cb62ce3325f1ee4718. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/FRX762195300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845e3f8fbfe05c1722f52e10c0ae12a43cbdc57c556d1f6b5696f2254d576cb6. 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/US4B90449603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bccf0eb9a02c0e0b6367e58175ce785320586d446908651265bfb529cf9e04. 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/US4B90449607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05407b938d8486fe32121a909784064479f586537fb10e5d082211e111cfc64. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US4B90451702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda088d32dd6e1f3fa2f07d4c888002918c177f00b4ad360cde2cd3fe5b0eaeb4. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USA2B1900994.
Open Me, A Higher Consciousness of Sound and Spirit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e1c1b2555c46b82372a7143869f830af61d38da6491be20b70e3e35688948a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/UKSJS2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e60bd14e2e09e65765392ad3765991e26c1c52b9f8567833442df9d2a76060d. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/UKSJS2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808ee0ea2181321dcae6d53db6fbbf9a24c7f234736757b5fe1d7a0017edbadf. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/UKSJS2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23c17306a636a2dee668e25a8022f8080e935404373d4cf59070a2c5bafc472. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKSJS2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b5d6af71e4cdfb6b012f1f63d3de0b1e5bcf340c9cfe62e75e0942c49a6b56. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/UKSJS2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb2de9d480d0b3532361172c9bdef57283ee3358d86f57248c1b1dff8b915d7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKSJS2400010.