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 0xa58145bfe1339e549bc27d36e5e1ea4166b12271fc32ab70e843bc2a018ab0c4. 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/cd65f578-9d06-499e-a77a-8442cd54ca68.json and https://artists.proofprofile.net/proofs/artist/cd65f578-9d06-499e-a77a-8442cd54ca68.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 0xb371458534fda9c3c91fd627172cf8a94c5f8fe51f2696f319a354a008dee33c. 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/GB5P52300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36ba738758fc8a4b78bed7fc70c4afb489824e545b0cfda9d8eabb8ebbce477. 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/GB5P52300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf4e619abb5daa6f87f6755f098971dd6613f75d71082ac28ddb5da890a39ff. 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/GB5P52300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4d33489eb8c89fc0b518771a76fae878338a688c54676759919ff1dcfdc97b. 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/GB5P52300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734c761cbfb05bba413a2fb7ecfcc062bec477ac6652f899df1dfb2694c4532a. 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/GB5P52300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1426850db4d9a3ea9d2b4393674cd173664bce11aade2475278022804c01f877. 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/GB5P52300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060565a6018a4d8131caed9beaa4b08edc36ff3e2b8bf8c64ac1c1c4662ed070. 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/GB5P52300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520f12172ffe07d6db64183e190b3c52a2e24599df95b449d6d0a1b3f1d35930. 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/GB5P52300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547bcef624d4e5628f15b890389bbf2ed55b6246a2474084dc372d624dd35a4e. 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/GB5P52300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f488f12928d74c28d372e5a08c62018dbccbe0958cf056c7b431918e42bced. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/GB5P52300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2954a7cd1256e5be6e19831e9e51a01ad32cc13c8495d5f8bcc8d4778eddfba. 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/GB5P52300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadcd76742f9574a92cf7e60de704f7a352521b17319fe91a16099274046e4e3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB5P52300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb30472ccbebda44e78466012ec076c0f68372799618f843b3f38f39e6331c3b. 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/TCAFB2092047.
Soul Jazz Records presents KALEIDOSCOPE - New Spirits Known and Unknown
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85f4437c7a8b3608e40206b6e30f2548e8333a0138827bd645f90ec0e28ae9e. 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/UKG2E1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435c448700b699f93cbfe481cecf05f32127e3a39f06cbe5864772197453f211. 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/DEG932003988.
Late Night Tales: Jordan Rakei (LNT Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3084f753ca7ff91f66cd5ff7167ea73fbd42eb7999847fe58339d81199905a91. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/UKG2E1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3084f753ca7ff91f66cd5ff7167ea73fbd42eb7999847fe58339d81199905a91. 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/UKG2E1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734c761cbfb05bba413a2fb7ecfcc062bec477ac6652f899df1dfb2694c4532a. 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/GB5P52300007.