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 0x991d9ea101256d3984a04fbf310b89cb8a581947aa566b86ccba6e8454c67a6e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1056b2c-09e1-4d00-9315-313ec001e128.json and https://artists.proofprofile.net/proofs/artist/e1056b2c-09e1-4d00-9315-313ec001e128.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SCIENCE FICTION (feat. Rino Latina 2 & Shigechiyo)
Open The Gate (feat. Rapper Big Deal, HUNGER & DJ Kaiharu. Bro)
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 0x6ce81e99e30b23a2e3ebc482108d3aa9dcd5d2bc563122403ef173634d0a8d49. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPI2584468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354828abdae01dfed348f5793e4dd883460dec70bfa20c41afbc67306f773b40. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPI2584497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd378dd323ae6f42c99cf76ed88f339c94c2d5e31ae563acd6bd805742d7ccd2a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPI2584502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe296e162a65e39ec9d8677f8c29b68d71ca253af7cead7ba55a71849299aab22. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TCJPI2584967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd85c40c511cc2daa09634e3dea70daadb1d137596ef2cb4a1559326f59e8ac4. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCJPI2584985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b3deb646c495e55e61214f92a4e674aa4b1f9d007eb683e90602d815936cf8. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCJPI2584989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28535affe6dd5252b34defed6841481fca5488196827cfed80c9bab9b2c7ee18. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPI2585012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a6d12f992fe4636adb8422b67af2a832ce7347bcacd6ab6e5857455eeaa5cc. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/TCJPI2585015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dcd62e729689013a501ad865c8d1c10d245eebe9e64db580582d679397385a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/TCJPI2585081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31eaee02c6dbbc0664e23c8aacce749953443e6cf2b82820cb4c825063bd8033. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/TCJPI2585107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6236fb5c68e1cb4ef85ff81958eeb77820beaa0190dcdad6de8dd925ac945c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/JPS801406606.