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 0xb1b1de249f1d28646411221497ae95d0602977e36b634069cf57a033586d44ca. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdb32706-258d-470f-97d9-3501c37843c9.json and https://artists.proofprofile.net/proofs/artist/cdb32706-258d-470f-97d9-3501c37843c9.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 0xa820ec3841b48856036d05134540af5abf891b4f9db2634a4d96eddb82d25f56. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/TCAGQ2277349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824ca8ab15383e7677a4336c8ae9b875e246660045d702a471dd058ad5bc3872. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/TCAGS2234594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1495c65ae26efc9913469973d43e085c6b15a5183b2558dd870ac615f812805e. 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/TCAGR2209760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33149a3934e01b8436d22e68b5b538703ec5a9fe62491e5dc3d22f0fb5c7c0c0. 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/TCAHA2388100.
My Ordinary Life (Authentic 8-Bit Console Version)
Gravity Falls Main Theme (Authentic 8-Bit Nes Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6d12fe1ea8080ef110e629692c9e1a4802cca1a116a1c1a813a5a1439a3924. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/TCAHG2332612.
It's Been so Long (Authentic 8-Bit Nes Version)
Gravity Falls Main Theme (Sad 8-Bit Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16d66f109c04263d2116730a625c3f00b2c62cdae49b9f2fdf16bc9e3224c01. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TCAHX2435477.
It's Been so Long (8-Bit) [End Loop Version]
It’s Been so Long (8-Bit) [Vocaloid Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc3b6441dafd19c87a2704bb5fcac49764790bd72002ed4593cfcc4127b5165. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCAIF2471009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb694c3d095a201ab64789790db700288c59282192a0fef68241c56d4b8c77de9. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/TCAIT2411126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9c977dbef7787cd97536d5dd1bc089a3ccadcb8a074a8c2adfc377d24624c4. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCAIX2430312.