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 0x2f1a00c594908d11e79fad1bf8cc675af88a94f8718586964bcda22b549dbad2. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfbb0d63-7039-4611-a289-b071cb36edea.json and https://artists.proofprofile.net/proofs/artist/dfbb0d63-7039-4611-a289-b071cb36edea.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 0xb6f6f58bcca4539246da60c7385abf1caeba6cf641c291fca9dcf5d136a8e06c. 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/QZK6Q2204868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d9c9eb89c98e48ec5c15fd7a764b1e292cffc5c7a7da7c04cbe5b43375c6c0. 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/QZNWQ2327769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4156bebc3f7a935836c3d9a2e0cf5432303608c73e307de3d22481a4ce29b6. 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/QZNWS2308390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe568ea6a9db3ae5b9d9cf26e62cca7d49a769e91cc60b9ca4048c1b4329fc1ec. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:06:35Z), 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/QZNWS2308387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c0a920ff353efcb79069e6134816be4a8235e7fd25ce2326f7aa980720d673. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTB32444965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d9c9eb89c98e48ec5c15fd7a764b1e292cffc5c7a7da7c04cbe5b43375c6c0. 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/QZNWQ2327769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c83686e046debdaf07cf77fa6abb26e6783ab6741733c08390901d8baa0ea96. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6P2148845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e259ad2425414b8ce5b8c3ca5f7884b142231fd32bfdafc4a2bdcdf593164d. 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/QZK6P2148846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1643a37efb0807f8e69eb96ef335a28391d122bace153545b7b37035e6939733. 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/QZK6P2148848.
Losing the Way - MIND | MATTER EBM Ritual Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4584759a9823b37ce9929ea692459c7535ae00a91ab58570c7bb27576d5fed. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZK6P2148849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37fe02b8b1a7bd46894a943625ecb8bd6cb8f602dab0bb34aa7f10caf734c2f. 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/QZK6P2148850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d1dee629fe15fd8d5047af437d63ecbb569a2d537969da660aa4528b146a93. 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/QZNWY2044487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cdad4ec67bf9bb442504ef623b87294f1d438e14f0bf9ad621340a5887dd68. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNWY2044488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb049f7b83358045601a9bc1e2f7cc4037a6b0e822a4f72a387bf19a87d004706. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNWY2044490.
First Strike - Opioid Slot Machine remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b5649062590eeff37c0961f30c333e15f3e0499fdde519b120d3c43a519856. 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/QZNWY2044492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512c4ccf74a067323083322e2457def8bec30e9a590c053187f0b40f0bddd76d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHN82016612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811e672190cb451dcb6ae88283912fa63f34314605bda72eaed9c9de4a7fbfc0. 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/QZHN82016613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f21f0e2d4f75fa9caa81d12fb586d279cc5ac249fcbdd231ab25e9bbc2f0af. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZHN82016614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f2dccfa88cc33e04378a684c486ed6e9068b6c77e19b70d54dfc379a5a4eec. 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/AUBEC2335478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5755380be6092c8c06997173c62909760c37047ad85605df9d7d7847a4029a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:23:44Z), 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/AUBEC2335479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4a53f52fd1738e45ee2235a3d41147528586c5c324d2a6bf6a62448201eb68. 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/AUBEC2335480.
The Man for You - Houses Of Heaven Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb880e7564f1acb1d4f10ec6a71c7e512bbc761f080f7a8fb5ac37c410755ce. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/AUBEC2335481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc091380361bfcacf2dec31faa6233a84a47434efbdcf04c897c7ab28520e9556. 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/AUBEC2179404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1c231e904452bac4a954f50e9e923987ef24cb6050ae763b35ec1520225aac. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:39:18Z), 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/AUBEC2166937.
Don't Fuck the Drummer - Pixel Grip Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bb6dacdf40831fe392ebb149c320f6f544d0daf8ad503656a602f8eb343682. 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/AUBEC2335484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93058b5b0c6eeaf6ad1073ec3aab16d87cb827c69447eeb9964d17ac5d80109. 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/AUBEC2335488.