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 0x3194a67494d552dcf38f8568afca09c317f1212b854f16b3383aa762f1fcd977. 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/5a3023a7-6f34-4d63-89f3-24aeb1783975.json and https://artists.proofprofile.net/proofs/artist/5a3023a7-6f34-4d63-89f3-24aeb1783975.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 0xa6f7c1d165549899bb4591486da81eda043eb23c5d853f0bda85eedc4bd8a1b5. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA2P2109263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba3a38ae3d1021b406f4a00cb6085ea87a99a1aae0a1a5401b5adffc36c01f9. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USA2P2109264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f58bd9a1966977ec882bdd470ce1b1231989787d5fc03d570bab0128b1580dd. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA2P2109266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc1163d548257f9946a8596ca3d4d27d61b48de2e193a4bc2ce4d5e0b98260e. 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/USA2P2109270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956f8bb5f6dc415ecf33e6b69f20e6e9b1f1fad90ae4d1efef6820566f66dfcb. 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/USA2P2109271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d13a4d9d227a0ca1f24c25fcfd7659467ae390555f031d5a696566c13377c4. 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/USA2P2109265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5d92b7ccc3e2a2b23f5a66e0923607bf73030e2e517c6ed87738a9a0bfebb0. 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/USA2P2109267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bdce4f56c6ba6714f4153a9e19f8bef6ac63481821210b9dcabe0b590a70b2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USHM81082171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8079de5429f75d0f8b76ef0187f0f8745adddd698c7fba719fbe6537fc40c49c. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USA2P2456477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14db5c95b829801cdee2f282125f64c4fab450580255ab4c0abe4aef2b8b430. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/TCAFF2068951.
God's Gonna Cut You Down (feat. Adoration Destroyed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3156cc22fa953a26a26e74f8680c7f77da72e703798835210105b3fae561b65. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/TCADJ1793039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7be9daf0e51bf91196e64d9985ce662cac1a897d6f21a5cb830697a035bfe6. 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/USCGH1736124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1935d69665920ed085438690388303c352784557e6f6b6f21fda1729aeae9141. 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/USCGH1736125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe706fc79965ba7830a291187ddaed57effd02cd05548d62c06d07470920830a4. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USCGH1736126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa397772a58ac3d7d8ae4e735b5bb987eb3e19153a850295af485c4ddda4c24d3. 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/USCGH1736127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa362eee80c70308d38e69342c8f23ac2c9e07d969cd6d938ddc80d9383c6f871. 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/USA2P2025550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf043605013fc94907987406aab211699ebd22ab7253b588e029ac09cd3c8d87. 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/USA2P1909882.
The Revelation - The Fukken Uber Revelation Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88075815d17d2bf15c8ee17ce3207c045b84012bcc840887286f58c3e0b23bf7. 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/USA2P2025551.
Truth Is Sin - Bog Standard Industrial Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f442deb0ea12cc9bc122a3d0a9bd7596d0a8799fe747a8bbbcd9a08deacca5. 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/USA2P2025552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c06fe7b7dd64b331dfe9280bb016bdbdfac06c163f59d0a34e059c17ed995c. 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/USA2P2025558.
Ghosts in the Graveyard: The Last Halloween (Remix Album)