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 0xd2bf6c31aaaf47127af27d888be6a0bbfb9f7ca61159fe4f57802686f1f3a06d. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3c32703-c5af-4c2b-a1df-22579576702a.json and https://artists.proofprofile.net/proofs/artist/d3c32703-c5af-4c2b-a1df-22579576702a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
12 min (il bello di rischiare) [Bachata Remix]
Serate Incerte (una voce per San Marino 2025)
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 0x15ba66ff4c325908ee09929edcb9051e86842b5cba8e2554993a9e26b5dc4c7b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:01:09Z), 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/IT7LD2500239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xededc62d58d0b52f2fd9278bc524ef9c96bd1d159804b3d51091c2a0e028a9a1. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:25:31Z), 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/IT7LD2500344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0406cb733f8e192086f1bd1a0d570dbbd04e4eef1579a49136685cce8e398c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:34:56Z), 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/IT7LD2500837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f3fe18c28fab7bc68ca790320126f6e93a2d2df97d29c5d75477418de464b7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:43:39Z), 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/IT7LD2501120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd50728e4fcef4eee7ed76da5dab5bea92bed4896e5ef6018ee54c111bf4409. 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/IT7LD2501626.