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 0xb830b8cea8d288686ad8ed31f0f8636ca7e93752ab9f342abaa5f1214c4c7ee0. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99999499-929f-4350-86b5-6768dc575275.json and https://artists.proofprofile.net/proofs/artist/99999499-929f-4350-86b5-6768dc575275.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
彼岸灯塔 (《浴血十四年》电视剧片尾曲)
彼岸灯塔 - 《浴血十四年》电视剧片尾曲
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 0x5800d0669f2803496d7be9d984e8a3b751fc317d2f7e4c76ae6586c14b373635. 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/FRX202114526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729e1843d1acba94e2a200c58720d6062f10a51a3854030ec4eb0360d0c28af6. 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/FR96X2198497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0344f73537217874136c5eb7b7dbad56a4580b97398f7b0f2efd3e6516e550. 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/FR96X2198498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25621613f4bb79dcd6dd066c559631d419be25412334c6fa9351d1c016a767d. 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/FRX202114725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc226413c4dff0362dedfb07cbb51f72847eaaf4ec0cdca0df8447d0f9f2221a3. 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/FRX202114726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f59d848d0c7d4eb23c6d3874b2a4a2f980bd9266fa6fc1d20e85789c6893428. 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/FRX202114538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f9f722f6c984e810a96998f4854c760c93fba13abd0fed046b36dddf166533. 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/FRX202114534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aabff5d80ca64ebdd32c9fc441ba26e4793a57b6eb12cb4828502c7d3b1ecf. 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/FRX202114530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc063eaeb60913709ecc7decd4babfa846bbe48f56e793c51cb2c5f8d40814107. 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/FRX202114528.