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 0x319b634f7d5ead89a344225f8a7df35607b6c673aa33b2924cbe9ac67244fbc2. 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/31abf710-48a2-476c-8b7d-0873263be181.json and https://artists.proofprofile.net/proofs/artist/31abf710-48a2-476c-8b7d-0873263be181.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 0xff540b8623028b0ad13b7f27b56d157a9cc0f18ee2a85f252b489e778c564716. 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/SE5BU1726798.
BLACK RAYS OF LIGHT (feat. D’LEAU & Rush Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86deb527e76169ef2204199a9325b26b8fad936f9be07115b709e6b03d20241a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/US7VG2244501.
Learn Something New (Mark Francis Stardust Mix) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7db146b8ba00dc1db7601ac7392767d5f4c9c040931c1b1f03c59fc56bd9cd1. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZTPX2454185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b8a0b273fce61367782f2be47ff4c058a1ece1999244e607780c3777ab0943. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM24S2200567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b8a0b273fce61367782f2be47ff4c058a1ece1999244e607780c3777ab0943. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM24S2200567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b8a0b273fce61367782f2be47ff4c058a1ece1999244e607780c3777ab0943. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM24S2200567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f2f0d14390166aa87e60a4dd94e9040d589bda3e905014af78be7e4f837164. 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/GBUM71900418.
The Post COVID-19 Mixtape - Dance Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f2f0d14390166aa87e60a4dd94e9040d589bda3e905014af78be7e4f837164. 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/GBUM71900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f2f0d14390166aa87e60a4dd94e9040d589bda3e905014af78be7e4f837164. 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/GBUM71900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f2f0d14390166aa87e60a4dd94e9040d589bda3e905014af78be7e4f837164. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBUM71900418.