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 0x119e9f6178e9d3c562c7909f2eceef99120b53e0f755b32809f050184cfb8b43. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6698908a-90c3-40bb-992f-2d385b6af559.json and https://artists.proofprofile.net/proofs/artist/6698908a-90c3-40bb-992f-2d385b6af559.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 0xd370cc0331729fa8d178980890f6f983e6cf5d77defd09f795f589fb00ed7f7b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLRD52083261.
Covers Culture Presents: Morning Chillout Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96c44f7cb18bfb91d6497cce4a24ff81b31deee220e312f4cbfcdb5005261c7. 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/NLRD51953764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0727ab706cbbc6903bd10cb3df613f2f9a20d0f77c3316dabb18450824deddb6. 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/NLRD51953673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e465c83c4a1ee66890132b5b6c6a85f47d22daf574f9594edf12aed6fa29b8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLRD51953747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a440b26c16eb82ea823dfac015e9cbe03c8ff2147aa6326ef5ea7d6bd7fb712. 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/NLRD52017607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc76161f1edf3535b4ba097e798d6e390fc57a2c1d12081540ef45c271fbfe14. 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/NLRD51953716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd075f5d587cc35e8d42c8eb96975403040aab7d1a44bb708558000f865973b18. 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/NLRD52017621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aa8af9876d96a363dcca90d6a0cdaa531b7b9b3e5b3fadd57b0510578c406f. 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/NLRD51967464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6325a972a719fd8e306d22ef9809c740dbefbc5d9b4f83e4ebdca68c35c7db6. 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/NLRD52017605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1192843daf2f8a4e1d8021c3c12e048a8b32b9cdc7c5389a00fdbbb4b3c22263. 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/NLRD51953749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248ad0ccebb482fe5fba0f2917ea21551b40560cbcfd11a84f4e7b2654a2d66f. 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/NLRD52017608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8db500ea944b821f64752ce0ef5a2124bc46d5a61f6b24b261fef99d9a553e. 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/NLRD51953714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d4185e0b1d026e5068cb51ff022528b64f464a4dd9a5e6ece8c1678d86c26c. 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/NLRD52017515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a05626255f67ebe96befb49aa33f12bc6648c62cfffde82b2ad801cb01dff84. 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/NLRD52017624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c7283c073c5932c3276c6164e840cc5b78b7565342af35fc6c337019188923. 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/NLRD51953756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa215816451099a239a878f4921b21b11fd0229cf0069f300c1778782feb241f7. 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/NLRD52017598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c856dde2d277a12ea53a94a721189b8561ed8508765377f243e3ecf12b6f956. 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/NLRD52017622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab57b341d3f7fcdab5801c6ffa09d498f98c1bf2af41b97d90adfbd2c729ab. 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/NLRD52017516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff8aea116b49e0d6b2a50d7bc22241362a77193bef06a1dca5e1b63ea06d300. 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/GBLV62113292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9170c95f53f871ba4b24beb09c147a233c91957242f009490fe0288d5b2442c3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITTGX2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67febd698921182d81481ca652a0139074bdfc41f546ada9176ce4065f597545. 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/ITTGX2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62ae9b55f608d4e4f98cfdeafe5fa933ff7883f3ad50c6fb4fc0960db1c00df. 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/BET231100425.
Enforce The Sound 2022 - Extended Versions