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 0x73d4ffe9aaea18095562e4dc950d3255a2f7ca5b71280dd6a4a768a589912075. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/990acb18-3053-4e1d-9834-2ce056b4836d.json and https://artists.proofprofile.net/proofs/artist/990acb18-3053-4e1d-9834-2ce056b4836d.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 0xd2647e603701c04f93709d9ba9cbe9343f7aa14ed07c7270a0111f7863f7a37a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:00:06Z), 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/TCAEC1946472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed012d107858e814c0ad3da50e6ba28326736f290824630989e5f3b4c2d4bb97. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/TCAEC1946475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e597221d82fbd4dc1b8bda461f46dfe0e51680870b7552fb8fe4aeb54339d6. 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/TCAEC1946494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be9481d9a3a3232e18bb6278e146f0a188d1773f71e568f2fe45d279adf3956. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:54:40Z), 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/TCAEC1946502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e07299f1c7e1321648aebb7f9dccd1817582ea5360a5f803e86ec7cac051cea. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCAEC1946530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f8774ae972b1272d606126ca6c345a24905ba2e69d53271d9746632ab7c988. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCAEX2004342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e8daa83afbc541280b140adc91a8ca8984d9e91acd350e0697865d0f0fe7c9. 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/QZK6J2080556.
We Don't: Reimagined - Cole McSween Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b431910a1644996e26e2b9c5c451709a5523f699d7abc6a8a79f8d6c5e0c977. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZK6J2080558.
The Red Pill Sessions: Live at Red Pill Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd7f742bcb1d11e3e8e87ae87828da068926c9699560e339d2ef319542f0138. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:58:07Z), 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/QZFZ62400932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bae02634c0cc0c775cb0857cc8c093e411cc2c6479b15b2fe097915dd25b1e. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USACX2400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7419d155dae3ee37c29f7921e281774ead7f178e764919ab6c4c864639500e7a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USACX2400393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5044688aa8ad3deeb0de5fb670f410ac97e59a90b4d5a6edac041e2b5a69d1. 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/USACX2400735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd7f742bcb1d11e3e8e87ae87828da068926c9699560e339d2ef319542f0138. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZFZ62400932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5044688aa8ad3deeb0de5fb670f410ac97e59a90b4d5a6edac041e2b5a69d1. 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/USACX2400735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3b429a72bb7f5d3c2271153ad288b4e3297fe72a9e1029384427a92036f374. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZK6F2482514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068bff852858185524399eac0906cdd340696c108ea321a5527851620ff6c659. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USACX2400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bae02634c0cc0c775cb0857cc8c093e411cc2c6479b15b2fe097915dd25b1e. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/USACX2400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd9c0324173c9b43325b99d19d14f20c2fb4a76c83025cec70c025bceee71e7. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USACX2400778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff10c0ca6a6ddc69971ef43e2d8c64e9ac1fd08ea5a368a02213c02be09fb35e. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USACX2400779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145e694a15e8d34507e0895050cd0cc9ad8c1eefbe6532e471dd49fdb6143bb5. 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/QZES52100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbbad079784c1e62ec92c9b4b320a5d6208236ae31e1206ed76c2b3c4794980. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZNWV2025342.
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