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 0x972b11126f32f8883c236914233f00778802116035aaad261ceba241d260d873. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1a986c0-482e-4791-8de7-c821e4ccac36.json and https://artists.proofprofile.net/proofs/artist/b1a986c0-482e-4791-8de7-c821e4ccac36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Comfort Zone - Lofi (From "Sonic Mania") - Cover
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 0x96e0b0b421618d57ee8ff8521f7c13c2a9c6c8ca693e2744924d890cb690a83e. 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/QZPJ32369168.
Toxic Caves - Lofi Funk (From "Sonic Spinball") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf3245c538b2f39609289356562cd583215a4ef4d76e0c7922e023c07a8b107. 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/QZPJ32369169.
Lost Impact - Lofi (From "Shadow the Hedgehog") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961848a5b06755c4876f19e559b29fb3380e1a58774b3cff1a2a50c80a44906b. 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/QZPJ32369170.
Green Grove Zone - Lofi (From "Sonic 3D: Flickies' Island") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0652b292e65f5ee208f6888ce75ba5d6fe6182d3896acb0ab32161643e7dfe. 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/QZPJ32369171.
Sylvania Castle Zone Act 3 - Lofi (From "Sonic the Hedgehog 4: Episode II") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f1ef7f684be2ab1a4a018466c5300e9c5a86613825c7ebe74b3f3fcb1369c0. 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/QZPJ32369172.
Where To Today? - Lofi (From "Sonic Runners") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68e4f27e20a11a6e24fb275ab32a354f7aebb2ac0585467a1f403fcc8f6c528. 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/QZPJ32369173.
Windmill Village Mode 1 - Lofi (From "Sonic Rush Adventure") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e80e40bccf6a5b9867d79bac6fc507486611bafbeeae67c3d455c06c7f4ecee. 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/QZPJ32369174.
Ruby Delusions - Lofi Pop (From "Sonic Mania") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5f97f12657e53f7f8f6cf276f5cee18d4a874290c7ec9e6f91c88a3979c362. 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/QZPJ32369176.
Green Light Ride - Lofi (From "Team Sonic Racing") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881a50cad9579923688039ff3b157c2537591b28f6546ca44c6f37ed1b3a8c74. 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/QZPJ32369175.
Can You Feel The Sunshine? - Lofi (From "Sonic R") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979f24fd58c9efa6888d40c8a9f040a749fb64b4d1427b9a7706e09c7f5ed4d0. 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/QZPJ32369177.
Red Gate Bridge - Lofi (From "Sonic Forces") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1350f9bb0fdbb33f2b0c69466362c6d4b8cab4d092928f7aefc24cd1b4481b9a. 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/QZPJ32369179.
All Clear - Lofi (From "Sonic the Hedgehog 2") - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaebff9fea6d997ed45ccf1100dc88c7ab0ff9fbeb441bec144047cdac00cbf. 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/QZPJ32369180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02e1af40123a66e8a396a021737b83a7dbfe80ea55868cdba1fa0350b98f661. 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/QZNWS2132229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcd1746456c3cd13964e099749de8fb590ee4f523fc5b32532576c2634e901c. 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/QZNWS2132230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bb1352c58f44e47fafa97d241ef0db6979b79622f06089d209e22fde8007dc. 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/QZNWS2132231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d589cc77b969b52a0f45df356640fa8575b87f803bc8674a259097f8ef6f1ef. 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/QZNWS2132232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1917834c5185220944c5910eeb5538df21267147f6fb343fd4f7105cfba45a0e. 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/QZNWS2132237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2235364a3d1952cf0ec2730f7939e85afc7be6a626cbabacf2f97793134b690d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZNWS2132236.
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 0x5786677e7970e221be11a06b871018c436eff0998d66666f0603f9edad99aa8e. 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/QZNWS2132239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d8b545f2ae4a7d0c27bb2d4634682123492c9f995afa84f30bcca7e4214cb5. 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/QZTBF2477507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9829877908b7892c22e807ea4ea476cf7a795ec3f449395d2b291547704a89ea. 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/QZMEM2419035.