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 0xb761e63746f8bc9916a710e19014b44aedea9a58cc509fc2feba99a08b5caeaf. 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/dd69789f-2325-42c5-99ac-6da0e08df23d.json and https://artists.proofprofile.net/proofs/artist/dd69789f-2325-42c5-99ac-6da0e08df23d.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 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 0xadd74225d3ae975c99fcd9ae1b32528640777f799b137770a61726ae1580b4da. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/THG010731488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb79ba2e2eb3624d50121d8474d815bb2263cc6f7051d42c1a0aa0439b1ffd3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/THG010731491.
คิดถึงเธอทุกที(ที่อยู่คนเดียว)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf694c0678cedf773f7929bbcf2fb7a9aad48c3668e02666cdc543f7d0728745f. 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/THG010730846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48633d447f066644b150d907f57eb6d96941fe816895a019129a58ac6bfc4c86. 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/THG010730844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cc865e40993ffb271cce034fc21dad372177818eb9244c663c6459bb3e43f9. 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/THG010730841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f8842d29f419f1e40039b58557e19689ef61ff8bfe816bab3fb583173d9ba4. 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/THG010730848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8237a57dbcc03828fc3a8e10665557b842b4815af29b883fdd399652f93d6f. 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/THG010730840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e34c0a4dd1e66b27577b62919e76e50696e4272fc5d6d9ed82e6bbd81b20691. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/THG010730847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cd28b579c47356ac252d04e66104a0f5ecca0a8b97ac855331aa9aac1762fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/THG010804604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2c81eb8810ef6253e6c51c85337d99ca95ac81fb638aecbaa3dda4fdbf541e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/THG010804603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f71c4569eee36962e4871a32477fa72db6f13ed7120d84be73b24ff1dd73585. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/THG010805307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5d4c32aab4eb60dcf626b523fcfc9fca9647172f6c623a3a60ba7153d2c6d7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/THG010823666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18ef1284a60c92f42743a26e2a8a960fd702435ab27a8445398c58967faf403. 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/THG010823669.
เกลียดเธอไม่ลง - เพลงประกอบละคร "บริษัทบำบัดแค้น"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc0936db001170b34ec3c849077aa3c2acd31a6abac4500fbc807c5ab960fc0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/THG010823665.
Green wave Cover Night Plus By Calories Blah Blah
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37a436bce32969281e58edb0e5f6836267a513974b2f9160a0f0ca97147fe67. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/THG010900669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe31aa3413f46560c2b3357a81142f66f9de9945e95b14ef228abcd62da67ba5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/THG010823750.
แค่เธอรักฉัน (feat. โบว์ลิ่ง มานิดา)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29804d2f1941708f1017adb2bf8ed65d07db16fbe1a60c1a67c4e032c0d06d68. 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/THG010901261.
มีเธอ (feat. โรส ศิรินทิพย์)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be451e343ded4fc75aea99c834b4fd56d4ee9cb23bf7bf7bb981d0da87bddf2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/THG010901794.
เพลงประกอบละคร หัวใจสองภาค
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40d260e44e4cbf76df3c49b2ca80fff71fffedcf563ab82ee5f1592fc0f9b5e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/THG011000907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3171600cb92a3026a961e6bc0efb4663e816a9c174287c8069b469d3a37a8328. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/THG010740002.
คนสุดท้าย - เพลงประกอบละคร "หัวใจสองภาค"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1070e92f032a49e323ca07f273e76f143196aa1e20b525b8c6460ed7cdcbd36c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/THG011000242.
ANOTHER SIDE OF LOVE BY CALORIES BLAH BLAH
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd255070f63d3a6095394a48f6f2141c693f9aa99c170a99af0a212f038afa43e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/THG011100836.
Signature Collection of Calories Blah Blah