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 0x1bcc966a6a05a45e6ad232ce9f905999a879f63b48ad32ef6dd88a0461c9fc5b. 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/fd7def0e-ffa0-4201-b609-30cdfc806de3.json and https://artists.proofprofile.net/proofs/artist/fd7def0e-ffa0-4201-b609-30cdfc806de3.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 0x09473f0686e2405326f4d7c9d898a057a84469ad115d836aa22f665d5b90e05c. 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/DK4YA2121001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3add74f955ae68cb849b16035497660a4e6ebc26ce203297fa440c17220b0b. 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/BE8LH2300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b2fd71054c832cb05f1d84924ba2defd6b44698804d4a9424fc56145d66711. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLV62128540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe716865757556fc8dd1be659ba89eaded926021e11fc5afba9f35a9d7c78e0e8. 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/NLT2H2100647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50610759c5dd323441dd69fb72a44aa15f4f0d270594c5bc786e0483ec07799. 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/DGA052365916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7449625b5c9eb27cb1a42655740871973fdfe33948c8b8af1b481d090c329e. 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/USUS12200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f10a2471cb6a6b91724df9ffb64ea38d27672ed691f653e178b56c0e4537b96. 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/NLE802200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea6cab34dc1261208e9377f97fe00c44cb48e82abdb5528a8f016ec503af111. 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/NLZ542202242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281aa4bd3a7ff5b31a176ea88356de5341b159c9db03aa3de5610ee10ee51897. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ542202240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4199881c3e9a89ad11b6d520f567a24620377d6b6342de01681cd74bd8e8fbb2. 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/NLZ542201948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58cd80ded5f8ca5e83aa4e222d5981f4a18f718cc31473e176d2758c028356c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLZ542101967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8437efa33e9780fcf4235856d9517afc28b4dbd62632f936506fa845677e3e7d. 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/NLZ8V1801034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ed9d7dd93f317a9ef14c5b6bc464b6f40f8be283eb6b5d8f33332f286a51e3. 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/DK4YA2110401.
Sail Away (feat. Jay Mason) - Hi I'm Ghost Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dded23e97d308c8eb16dd2385b38cac83cc872a08636d49546eafec726f3dd0. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBEWA2205078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ac93012df8b000d7f14022e22df4a147eaec249ffe8d6942196ff7ad7ff076. 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/GBEWA2200830.
Back To The Start (feat. Isaac Warburton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ac93012df8b000d7f14022e22df4a147eaec249ffe8d6942196ff7ad7ff076. 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/GBEWA2200830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ac93012df8b000d7f14022e22df4a147eaec249ffe8d6942196ff7ad7ff076. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBEWA2200830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508b9c07633945dd441dacf1407fd4786e650f04c5ff4ec37938c7dd34e24606. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/NLQ8D2201199.
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
Sail Away (feat. Jay Mason) - The Arcturians Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3fc10422a0fa81870a3c69be471a69bb092b0e720d916279398b19c90b9c60. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBEWA2205077.