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 0xa7c3878a54a717cdcfff00eb6978f04eefa2ae5c205ab12f22acd7d8a6092ce1. 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/cf841e45-9ee5-4af0-9475-9cb408b11e3d.json and https://artists.proofprofile.net/proofs/artist/cf841e45-9ee5-4af0-9475-9cb408b11e3d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dcd378f3090b370d3f03c5f18146be4a0154f6a19855365ae8d8ed7813aa6d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/THMOB2009740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795a558819ef287ae4ecf1aa3fafff6af1456e3f9ecaa5c6827bd7b47db6466e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/THMOB2010233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbf0908f9417c3f2b8663099e26506429c899e5b3989a2fce1e5e49d950c8f1. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:54:17Z), 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/THMOB2110753.
ขณะนี้คือนิรันดร์
คิดถึงเมื่อก่อน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f9c55b869bd815a6827b4749abf1b6d2b3ccd399499616115cb296375d7a82. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:03:38Z), 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/THMOB2211716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a0a785d51a1def8c1d73f863220c8b3e6b6fafb9ae102506f80c5710d816ce. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/THMOB2211796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47101dead7614f5e04223f13aab5db347151e386b1161744903474e09faf4ad. 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/THMOB2211856.
เครื่องช่วยหายใจ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48644e0d47765909e05f4786d3bae9ea3dcdf816b3d2f062d861c96717ccd83c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/THMOB2312127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa846ed7b3fc6739fc94c07eea12854ea0cf06309d46697d2895a4f6195420e49. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/THMOB2312290.
อย่าเรียกที่รัก
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fb0d95685fb0731710dc350ab2b1470ed51e2e2e035a277e542d5dc1f7c1e8. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/THMOB2312433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4b4ed646cca1967fe2df7751a800689db6b74c499fae2f1b694062bd862610. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/THMOB2412634.
ถ้าเธอจะไปอยู่กับเขา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaebd888af6ad45d7248fca8a865ba18e18524651812bef1e2de26ea55b98dcf. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:37Z), 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/THMOB2412672.