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 0x9c6d883f026e08d5e865176a8ac0aca1d8ed3d161990d461a5800f2f15ebdc27. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80dac3e1-af54-41de-9652-3a4d1b3abd86.json and https://artists.proofprofile.net/proofs/artist/80dac3e1-af54-41de-9652-3a4d1b3abd86.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 0x9231df84d0819d9b7fbd8935a2cc5ea91d2690b48f77c23de978d456cff4f5d8. 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/USFI86000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee87d4751f3c093305193f8f5083842043b52f1c0cb057a3bdad78860d57d67. 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/USFI86600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0cc8ea04659d6f6117e6bf48ca2649e50e9d1eda1240d4b09e141d024b3e98. 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/USFI88200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8389d651f86bcf427aeb0d65cfa0e76cb1b63848c80c360c7ca3127b701dba3. 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/USFI86000075.
God Bless The Child - Live At The Five Spot, New York, NY / July 16, 1961
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f3360e4578d2e7530307a96bd0316494abffd4a3d6a0c4b81a87c269da5525. 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/USFI86600189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee87d4751f3c093305193f8f5083842043b52f1c0cb057a3bdad78860d57d67. 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/USFI86600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8389d651f86bcf427aeb0d65cfa0e76cb1b63848c80c360c7ca3127b701dba3. 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/USFI86000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dadddbf6e95639a7dffe799ffdd6daddb1de153fcc6760522a23c14ed9e268. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBLGL1296361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fda34033db227e5a8e28144a7e0baa956325483616f7b04ad7233476247a54. 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/USFI86100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b4221ebb5d6b8c47a1fc8adbc0078e01d56efd0a8de1d11db75cd3c4cd34a2. 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/USFI86100097.
Prestige Records: High-Octane Jazz Burners
Outward Bound (feat. Freddie Hubbard, Jackie Byard, Georges Tucker, Roy Haynes) [Mono Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3241475776296ee8a3e837f8d4e758a08d3f20119813371660db825c68e4d70a. 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/USC4R0816869.
The Very Best Of Prestige Records (60th Anniversary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d991e4dd3dda27302882ad7491241742a038806f18de91c539bd47ce62978da. 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/USFI86000088.
My Funny Valentine - Rudy Van Gelder Remaster 2007
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b7f5a8c040d335cf8104e70a930871489bbd78da7ddc3c5024378d1660c5fa. 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/USFI85600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89034a765b88ec199afae6da4e330b66d7b046a4a3f51dfc0e17a9e08f86fd22. 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/USFI85600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4c81586b593a97e823bb8d63994200d5f10272cde52eaf30ff9dfd38814577. 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/USC4R0918950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8175c6128234346d1620dadd656a3be771b75dd4660e674c0c21ae565285f60. 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/USFI86100747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46554dcf9066308a1ac8be1b4f28ad6303938d97a3c5fc2a03da096b434f275f. 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/USFI86200575.