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 0x020a45822fa837bc90ad50cb910662acee1ccd060211db2dbde0928a52525a53. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/662577f0-e2cb-4839-a070-e484c73149e9.json and https://artists.proofprofile.net/proofs/artist/662577f0-e2cb-4839-a070-e484c73149e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Essential Classics, Vol. 67: Bobby Timmons
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 0x2154e8eb0370cb08b7a2b51ead0802e75208b69dfe748e2394c2d18df981a02d. 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/ES31E2203892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4815b687949cda005ba043e409031af049bda496618c180c514cbde337d333d7. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/ES31E2203893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a23976664dd053debacf37e51446a411af11122c2b60997adeb60d90ae03fc. 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/ES31E2203899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a17494c2d12a040e39c1d169638a03d118d9f5a996e688bc3ac86bba4c4a3c7. 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/ES31E2203900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ccb9855c2970a8eb1e6e79532ab1f2e9dd7975451c4aa8de4d8ddd6a182d70. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES31E2203902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a2b8ac911d9dd9679c135acbea3e45c598039cd0e10d87bc5c9fe2882fa86f. 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/ES31E2203904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d4027718f4c7f04a25065f65e4a0bb4e988d7533738abaa591cbb2d46a96e1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES31E2203906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d493085372966e40bf9809318e5c0df17e7d83dca2fde0a569fd7545c95f6f. 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/ES31E2203908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f16b7399a9205d6a674bf359d66547f98aac19dee5c6f7a5d4c3b696ae9c75a. 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/ES31E2203910.
This Here Is Bobby Timmons / Easy Does It
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e62262ec17b02500a54390ca3149db612f0aff5b486518d493aa7e91c8571ac. 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/ES7710869801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94093cc6e229c993b9b0521f0bae2939f1ce7c48bd3e7db92ba37f48ce30eb09. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES7710869802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3c2184913382cdac1cdcfe30b97acf4a4dba5547af9bfeadf8e4eb2ed88c91. 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/ES7710869806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f28fb7827fc5f2b457329f03db6b0eb8dc0724a41141b8d5c0c69b61fc42fd. 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/ES7710869807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbee2f6504c2bc6509f98eb6e8579fd79c3d8fb48e0ecbc623e2a60b7cedc0a. 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/ES7710869811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aedc385396aa2d3e2b0ee9fe3fc9f446fc0e7099d39e2360fb0000b300a4773. 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/ES7710869813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2949be0292a5c15f3609ef844ee934ec407c048eca2cbe6286ff8171bdf93e2. 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/ES7710869815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d17d505ff839e77498d91782beaa5929193a80d55eab53321e0c693cc903959. 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/ES7710869818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d50105c478b663128570d21f3335063906db2268ed7a1e552a4065ed5191d9f. 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/FR67W1002437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3863302c7236a13403babbc77e622340d2eda2d9f3f39c97fd8fe56474a29a8e. 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/FR67W1001485.
James Clay: The Kid from Dallas. Tenorman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6a7bf6aade2fe71656c1afa5249e3cbd23f6b496ce021a69745c585475333f. 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/QM6P41452252.