REDIRECT National Institute of Technology and Evaluation
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 0xd5520c8b86198fb248ba6bcc4155cb6278c1a983d27a07870e258fdb3bc2ca9d. 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/393ce7f3-1f0d-4a93-8de3-94d26e784f43.json and https://artists.proofprofile.net/proofs/artist/393ce7f3-1f0d-4a93-8de3-94d26e784f43.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 0xce003c15e848134f9421ce93838e981245b081e2514979cd3ad7471865c40b20. 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/QM6XS1704188.
I Long 4 U (The New Division Remix) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aa1df7c9d4f55597f0543690003fcd2fedd8f6a516e76541918b9c7f32f004. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6XS1902751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134a6d0be07df8848d6508b73f8c36f6393f02e10bc6991d8dcd6032abb84163. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHNB2125962.
I Don't Know Who I Am (Twin Tribes Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df8873c58f99accdd81dbf9f997bcb491715d5ff70afbdb96beaf40de8579e. 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/QZHNB2125966.
I Don't Know Who I Am - Twin Tribes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df8873c58f99accdd81dbf9f997bcb491715d5ff70afbdb96beaf40de8579e. 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/QZHNB2125966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce9b3113284296cf40f1b1b03ec82ea1920409b12031bda1cf3aa2654f57cf. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZHNC2303783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3758a5159972cf5f02475adac6b1074bc31546ad94db9a2f8f03d8dd8d0c20c4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CA5KR2212137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b940fe9f9199150fa5b95711b33db5e0f4b22842a4ff6900dea94a0416bd529. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHNA2413512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6525c25d7a3d5db6d9cd3324704dcb817a471f7b6510365af4e569709080482. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZWFJ2485958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe954d0390f30afe2a88d73535d957c310717bc9d60a92ecbd80bbd3c798573da. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZNWQ2440449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6525c25d7a3d5db6d9cd3324704dcb817a471f7b6510365af4e569709080482. 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/QZWFJ2485958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b940fe9f9199150fa5b95711b33db5e0f4b22842a4ff6900dea94a0416bd529. 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/QZHNA2413512.
Oblivion (My Obsession) Rosegarden Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dff8fe9737a111517ce5b9f1a7bc4516e22d710d79ff170d1b0b55f8f2994c1. 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/QZFZ22180277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68477c1eddb1f0c36011fd251489e8764a5ef780c6f9baaff3aab61920b4d79. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZMEM2076199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd795986b253f85d5c63fe5054eb8327992ff0e271bfbcd5653404b39052e28db. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/DEKM62000369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955fc4567af58b074682c77aa2519235933011f17ceb6cc8e581eb20ee8e8aaf. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QMYH82400010.
Electronic Saviors: Industrial Music to Cure Cancer, Vol. 7 ReUnion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a9c608d56d013974e52c0478560c3624e2d04007cf3a2f6a76c9154a1123ae. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US57M2541020.