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 0x50dbec172af6556b6bdd642fcbc1d8186d8d4fc4e89fa15484757d275e5854f9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f597bf1b-3b55-4371-9d80-43dfde8a1cb2.json and https://artists.proofprofile.net/proofs/artist/f597bf1b-3b55-4371-9d80-43dfde8a1cb2.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 0x578d003fddfa4a4878afeb25e29e8ed113bba8c07728bc97ea0867eef90e03d1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:08Z), 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/TCAIS2430628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130d28b9e2bbfae0b40eca0671ef4e74f6b076fef013367b84a16dd934bf8d0f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBFG91900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbc77066a7294e280274142417b6f213e3aef80f4753000a22e1dffdf89ab08. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBFG92000137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7dcd9c4bb964c785616cc5055b471d5e3e800a176826493dfc54bee1dbc2d8. 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/GB8KE2312925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc5a3f42fe441b2b8acfdb6de396ca8391dd0e7e6e8fcce3e46db086c926673. 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/GB8KE2312926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0bde6ec62f5c617da583d148cac4d8d95df1a838e8445e21a9af597c42a5a8. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:03:46Z), 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/GB8KE2312929.
Life And Times Of A Ruffneck - Phuture Assassins Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033d754cfc7b47c5c1d09c1ba523d86faecccbd967b9ea739f41d734dbdb55e8. 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/GB8KE2312930.
Trip To The Moon (Part 3) Kaleidoscopiklimax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3490292e3e2dcfce295ad72ed6f835e654bb31ed0974f33b48579d20dfd13a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB8KE2312931.
Trip To The Moon (Part 1) - Danny Byrd Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcad50db2e5ef8acc5fde17067c5d078a54ed4063603cec29b68e3f70f96be56. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GB8KE2312938.
Close Your Eyes (Optikonfusion) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd572235983990e75082059a47b1ce5fa1708ee22cc6b220a54400994c6719f44. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GB8KE2315281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d19e47bcdfad8f8809d8653c6b0da59cea869a29e87fb14484e2832a7b97bf0. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:06:39Z), 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/TCAJP2599801.
Trip To The Moon Pt.1 - Danny Byrd Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d499cd1d6bcdd4a39f7ac38e03afeb0af2d970d1f6eb68fe6d2e4f06573131. 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/GB8KE2157873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d499cd1d6bcdd4a39f7ac38e03afeb0af2d970d1f6eb68fe6d2e4f06573131. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB8KE2157873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87243b96ef6bb8399b69baff7ffbb0f892beec0a04504bcfa1eba67b1d53d71c. 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/GBFG92200171.
Five Hours from... - Acen & The House Crew Long Journey Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b6c964205af32f07c948530cb563850aba7a67ddbc1c0eb31d33b595c2bbd5. 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/USWR31500599.
Trip To The Moon Pt.1 (Danny Byrd Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2035eb38ccf958758cf661c3078a9a27eb5a44caf26c1ac1fb179adeabcdb8c6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GB8KE2157877.
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