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 0x23138bc90005d1047019c5555d4491921eb6521b2f8b0ba99cfaeca34377ba71. 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/40d6cbce-2080-4e91-a28c-f8bb111029c8.json and https://artists.proofprofile.net/proofs/artist/40d6cbce-2080-4e91-a28c-f8bb111029c8.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 0x06ac7fb755f2905f080aa7223348e83a030896795e50cc3ff260f5f08d4417da. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCACQ1627220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cc09887ccd7bf2ce4eaeda356bdc9d8b6b3c133865b31c5cf56c6aec9f66f8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NLZ541601127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f459fa5b96ee412c1dd91639444018af29b90dc98f8f7f54ebe1eea0775dd98. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLZ541700777.
MIND (feat. DOC & Goodmorning) [The Remixes]
MIND (feat. DOC & Goodmorning) - Parx Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865dc183ead218b99fcf0086f3bf13a2c19565199aba3cb9ac61f7bba5573d0e. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/NLZ541701254.
MIND (feat. DOC & Goodmorning) - Tom & Collins Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe833305b7fdd05e0028ada322805f71542fad7874fbbabad1e0c1f649d40275b. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NLZ541701255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9915002c434e749f897174ef3c0316d08940ae092296ba93dad08109b35370a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADL1826997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a83954a6b0250ce717bca7152aaf9146815ddf592805589ac9833d0e27d04a2. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBKQU1856963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f88941433f03bb24f8d06a7d562062734dd27e16e5c5a5aa3e9a2efae3f261. 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/GBKQU2117267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8925b4ea7a0e867741228c98de32926ff37b7b7a5ad1e9e4316252a9d634e2. 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/GBKQU2163027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92456f3277e51b65de928abdedfb75a101faaab93e16afda0057faab95a4941e. 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/NLEW22200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70293a6b3e4b83872af3593cc75b223cef96dde7bb111be55e6fa9a06c14d57b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/NLEW22200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e048733dbfbc32d6f1e200c5b7e9bfe052ca5600ee0fc7717b14b4fd239f67. 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/GBKQU2351858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a26e241157f8700d55811a1b08b2db32bfb187502b15c7488a770c11f0cd5c5. 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/GBKQU2357668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98811e5d859dd0a4bd9952623380f7e8268a01b1c518e0135907b6608c1f1af. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/NLEW22500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776fe40257a4162bcc582fc2384f771094d8a35511189abee830bc0a423406fb. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/NLEW22500006.