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 0x0c9e95331bd2f6fe5c33dc71a55b0b4783a6458c247499b2ffb04ccdfc016281. 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/e6089fcb-a578-4a77-91ff-d1f49f3f08f4.json and https://artists.proofprofile.net/proofs/artist/e6089fcb-a578-4a77-91ff-d1f49f3f08f4.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 0x26045b980a7776c962f055877d337b74e03850694a9c645bd1b9d73725e02e58. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/DEXO52469805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2504513f023d8fdd326b818a23ea2d21a9e9204da394453d6980bad192bf07. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEXO52469806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f83f72f939154c10a76887d248cf1bda7d81970185fe1b833230b2ae25d49e. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:52:06Z), 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/DEXO52469807.
I Get Along Without You Very Well (Except Sometimes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd61076bf39ce00c5d111a91a5daa8f0de29a4ded8936a62b527a3f3a0edfb16. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:02:38Z), 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/DEXO52469808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5019525f31570ba9135f4b41d3ce2bc9721c20ebdfbbce22d2b25bc2e2bd0366. 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/DEXO52469809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de375ff22b35e382b1e5ed9d63a8faae958ac5d0da44634f9e9e509a3187687. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:45:18Z), 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/DEXO52469810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cdac7303c3da5f0df05e75cc5f0f45fdd40bd50552f8c486400a8de729affd. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEXO52469812.
Chet Baker Quartet Featuring Russ Freeman (Expanded Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065e4dccc3196bebc98691f67ae95e6cdc9316766d45a48ec4ca76652d42ff3d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USBN29701034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275d3e00301c6f67abb4dd461678e9586356ea5a15a923d0b981aa832b4a7a24. 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/USBN25300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8299f18a53bd9868460f791c9fa09f9bf919d2a484f973d0c1459d9a84ae5b5. 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/USBN29701015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5421170da4eafbf93d8b8f62a9d9621756a59acc3e11443169de6e5a7a25e65a. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:48:30Z), 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/USBN29700943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7050148ac108df383d8c70a1502ab1bee789a82d357b8b5d0fbb9e1ebccafd32. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USBN29701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48accb1283fc665fd9353dee3c9effb174929707ca10d7deafa09166c5302b6a. 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/USBN29701009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731c3c239d9e1573e071c4e90c1e81a70368a767dc27156d2995282a2b534772. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USBN29700858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5aa8ba8aa825726cf98ab98782052b1713c0320a386e62b030bb55a542978ee. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USBN25300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d2918e75c0f1ef8b215f0a48d5b67a5c14c7b56cc255b1700b924e474aded8. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USBN25300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8174939db165c6b3bf080aa0af91f15dfa863528f699cd6372f2aad4fc5128e6. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:41Z), 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/USBN29701031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d32038c61d2caac37f6c6b6fec477aa2981be9edb7d94fa7a998d904e0f78d. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/USBN29701008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903c2a1cd0d1b4cfd2890c7f77f381d9016c8813ef58a1807bf09c3e91683b00. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:09:50Z), 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/USBN29701033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065e4dccc3196bebc98691f67ae95e6cdc9316766d45a48ec4ca76652d42ff3d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:20:57Z), 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/USBN29701034.
Chet Baker Quartet Featuring Russ Freeman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf51d82bcb5cbf1527c29f176c0fa5f6dbf8a69ce4bcccfa5c95cb5a1026907. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:10Z), 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/USBN29700855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50764838b8b8649965df2c65848baa9de1235d69c388d0586b191f9cf0855400. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USBN29701011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5be402b04b59ad167b3c6bc2ac5936827232533807f80d588dca99c073e19a. 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/USBN29701030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d0970e72e9bb2e73c266b2ce3a4ed36b8a1523501dcbe6cda2d3dbd37aba04. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USBN29700942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1ee58ad45ac70992f90df506c046c5c7ba59c841c0f9323dbbfc705241b201. 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/USBN29701014.
Standards (feat. Gérard Gustin, Jimmy Bond, Bert Dalhander) [Mono Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3358c2adcce0c027e37a8e80c9be510db03599b58bc25b6df7ddc9ef3b7f77a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:56:19Z), 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/DER411600216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9b44281f6fa476f856ca8ffb6b9d18b0801fa1dae6e1af6c5878f72243a4cb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBBLY0601693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f2c33b9425750dbdea2b475878208714d4207415e90f9e64fb7cb1cede86c8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBBLY0601696.
This Time The Dream's On Me: Chet Baker Quartet Live (Vol. 1)
Modern Jazz- The World's Greatest Jazz Collection, Vol. 20
Modern Jazz- The World's Greatest Jazz Collection, Vol. 21
This Time the Dream's On Me / Out of Nowhere / My Old Flame, Live, Vol. 3
When We Were in Paris, Vol. 7: Chet Baker Quartet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34681d11f3a6d8e13982620016396c01c40f3e6267b16f7929f78c16e8f5cec. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USV291327185.
Köln Concert 1955 (featuring Dick Twardzik)
The Cool Jazz Movement, Vol. 12 (Remastered)
Live at Le Dreher Club 1980 (Friday Concert)
I Can't Get Started: Live in Palermo 1976
The Excellence Series: The Chet Baker Quartet (Restored 2024)