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 0xf5efb4f0f6639aa83784afdd05077fb647cc79b8913b6b32fe5c2f6b7c26803d. 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/b4e07e4e-5b53-4117-9961-0efdb6403297.json and https://artists.proofprofile.net/proofs/artist/b4e07e4e-5b53-4117-9961-0efdb6403297.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 0x40ff8386f7ec2bcdcbe752a84ddc85001d3e3d014b978d19fda6fdeb2c4b9c01. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/THMOB2211323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5d6519faf55bc73ccd0bf83cefcd813b697a336c8aceed55971be9f74eebec. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:22:39Z), 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/THMOB2211324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f5bf7a6b6cf805ac2268b17e3b8acee1a14c3800e9ec290c3452685f5890b5. 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/THMOB2211325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b49a1e93171160d3c78fed1ad0dfd5877a15ab18875b079c92b73d3374d3ab. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:05:14Z), 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/THMOB2211326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb70ad4a77d0be50633c6cd6798ede6182189415495150c62f2ee5e974ed50d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/THMOB2211327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f9467214888b6d394db10871996aa02c3f81724a07cfb0aded712597b99070. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/THMOB2211658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b17503bdcd7d549556ec7fd16e56954409ded19bbe16e33ab96c7321086aa13. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/THMOB2211687.
ตกลงเราเป็นอะไรกัน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e5484bcc903295168dfaccd59bf91825f6e0444ffad3105850f24d4a2d4d11. 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/THMOB2312163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439fee8d1d7f3f00da319706bb095e2216101a8b46b30f6e37edb739a79b6c81. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/THMOB2312365.
เป็นเธอเท่านั้น
คนอ่อนไหวรับได้นิดหน่อย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d643aa1770f732fdea255c8bc82552ef01b8b6bc8860607d9047e872fb1c8b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/THMOB2513210.