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 0xa2617a17bc1749aadc4ce98e0ec9430ffbb8e107f91a9ff7f239619ca166257d. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f8b053d-ac3d-40d3-b573-88d6baa9b923.json and https://artists.proofprofile.net/proofs/artist/1f8b053d-ac3d-40d3-b573-88d6baa9b923.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 0xdc2fe9ca22eeb6fbcfb33e530eeeb49463d81528464d8f42f5fe39d9b58d013b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6F2471962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4593193cca8c760148612c11e990025a38e8b11fcf8a18bc8957ed36d97c69ac. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWFU2486715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7287b5bdcdf97f29fd9a0e0d724403988333238ee1daf780e9a2a811c31b4354. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZWFU2486716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b58e43ba63e231e4d64cfcb105b68daf24cf94446d24cf9f459c9c35cbfa5bb. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZWFU2486717.
Hail the Rising King - Symphonic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b223cb478c8258325f9b388de8e309b7ee63f44afd8c1d57f4419408dc6335. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFU2486718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1e6dcfc9befc72b275d340585f9bde37fa1bc85b049fd720ddd59384849676. 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/QZWFU2486719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad3710318a3aff2ba5969e29b1871f6527184667c530d00edb1d3f89e19dd4c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFU2486720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdd417c90c182f0ff593d32574afad5af73d4595bb9f13506b30c21f665eb06. 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/QZWFU2486721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7ce4162a3235a152bbac01849a053813006062957ecde239d36a810ef28464. 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/QZWFU2486724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e3c9e6973186a231d249e2a3b5b64b271b672a93abe909f0b8a96be31ae469. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZWFU2486725.
On This Sacred Emerald Night - Remake Version 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe868a6ae54839bfa783fc4bdd01e4a33070d4fa5e1e6722ef0cdace90169fb8a. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:49:22Z), 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/QZZ7Q2430993.
Be Thou My Vision - Power Metal Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6212f63d5c1889f36e29859e1c9eb6003bb60bc33bab15c5433c19633270651e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:23Z), 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/QZES62531689.
Darkness Has Fallen:, Pt. 1 (Demo Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202d73654ad38f663b598b5d4bc53df9cafd29f9c5179fee9ccd5c062b7ef89a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZMEN2577119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daae06f8dde6fc6ed0a44cfb047ce94d97a8b900e3329fe3e5697e2839814d8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWR2579143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83756705220b53ae08c177cc3f481aef154df3b952c089f5bec30a2c2e228128. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZNWR2579146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e5149c293e8a1ba7af70d135da2ec6729e2b6c01996abbde7302aa15a2961. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:25Z), 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/QZNWZ2502533.