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 0xa70bdf1e406ff3da6c2d7af3ea78d1f24444f100651b27ffc6344d3b29346341. 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/6d146460-374b-4c24-a979-49db7f20fc0c.json and https://artists.proofprofile.net/proofs/artist/6d146460-374b-4c24-a979-49db7f20fc0c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x25174421cb277fea34100a66203dee9a6d9e74fb23acb41cf102b704f38985c5. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010800679 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5023c09bdd5794a0643b1f9185b0f8733a33f9e5cb84ddbb985f0bbb98830b1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010800680 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2aae305491d3d5c874d87d94779ca6da635cc40cf391e0da2bee765aa651b30. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010800681 — a six-check JSON result.
ละคอนฉากสุดท้าย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ce015fff0653ee42447311d9842f694328ec8a3a35937e6025cfe048e4ecab. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010800682 — a six-check JSON result.
นันทิดา ชุด เมื่อวันฟ้าสวย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57afe7fd68d433d8e6d0c2f26505491caa030d9c1f36302f05323804490200d9. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010800684 — a six-check JSON result.
นันทิดา แก้วบัวสาย ชุด ในฝัน
นันทิดา รวมฮิต รวมฝันวันวาน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238f1d84189c22b1bb734c8ae5ab1238a063bf4513365ffee7ebdf3893db7545. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010800595 — a six-check JSON result.
โครงการ แม่ไม้เพลงไทย
นันทิดา เพลงหวานเมื่อวานนี้
ไม่ต้องการเห็นบางคน (ที่ไม่รักกัน)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7312d7d26d2e87be15f56b141162d7179fd213459f6b17edc31f093df662b3f5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010801361 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e4e4b4fc259ad7dda8bf8a26895195c786216cec2dfd6300fccc2e5efdb6ae. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010802264 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7333278b91a39dc25c967d591d6fe232c1bd33009352dc7606394fa9a8a0226. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010803402 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad0ceebbc1e76c0096b09016e703375696f71f35d6eaea56598b35850529411. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010803406 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9e1fd2dbaccc1e514aa921a179105fee395f3bf21cc1cec0a50f4cefd09453. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010803554 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32c89db7c61736519671eb5e604d494e63dcd8519c930534f2822f9f6952e06. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010803555 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28020555ff1e8f272d7cecc1d98e701d4be752d7431eaee111fcf7b651d9db20. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010803560 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce7e81d0025f2d9bf9433d172736efb9fb9b7f99231f0003ab4daf868e998cb. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010802005 — a six-check JSON result.
นันทิดา แก้วบัวสาย U-CHORUS PROJECT ดาวร้อยเดือน 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb2e74ce373cb9eff76756483fec32fd6d003ce180f88e22e2374afdf6f04c0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010818173 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ee948b8f9c2b7f0fd26c2391d0dd0724a4b427822ce62a618fa7287b20f50f. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010818175 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a8e76c74fcf56e4bfacde63c55c17debfde090cb241013802ea3a3954c835b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010818167 — a six-check JSON result.
นันทิดา แก้วบัวสาย U-CHORUS PROJECT ดาวร้อยเดือน ชุดพิเศษ 4
ถ้าหัวใจฉันมีปีก
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb244a48629f1943fb226dc058dfa45265b0f5f963ab60d7628a95e498bce201d. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010818177 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59252c438ee0d421a236e2d78df8b3cf72aab9ad8cc636d36af05235c35551f6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010817414 — a six-check JSON result.
แกรมมี่ โกลด์ซีรีส์ สุนทราภรณ์ 2 นันทิดา
นันทิดา คนที่แสนดี
ฉันเหลือเวลาเท่าไร
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d6e8eb36f441f52818ad5b6a3ef1850e162a28d991c8070c32bb63d331df18. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010811108 — a six-check JSON result.
เพลงรักจากวันวาน 2
เพลงรักจากวันวาน 1
เพลงประกอบละคร กรุงเทพฯราตรี ชุด 1
Living Green by LIVING G Pai The Magical Valley
อมตะเพลงหวานกลางกรุง นันทิดา แก้วบัวสาย ชุด ฝากรักไว้ในเพลง
คือหัตถาครองพิภพ (เพลงประกอบละคร "คือหัตถาครองพิภพ")
แค่เธอบังเอิญรักเขา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1eb5267c9a1d295507f7faac909679137e3f3b030dba342211aa6d198248ac. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG011700086 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23017d0d35359cbb544505b841ef5f4135564eb8e0b0315386d8256f7dcb98cf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010814832 — a six-check JSON result.
THE MASTERPIECE นันทิดา แก้วบัวสาย