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 0xd6044ac762d6826cbec0d5ea296a01517c02be49168a80500474788e178effec. 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/c1ccea3b-75fc-4015-a229-3ca0aa85c1ca.json and https://artists.proofprofile.net/proofs/artist/c1ccea3b-75fc-4015-a229-3ca0aa85c1ca.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 0x1f3ddd7ced9a1969619d7a485b6c945d2cb4aae08ec18875261bde37c8309b55. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/FRX201763669 — a six-check JSON result.
รั้วของชาติสิขาดใจ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe159c7fbec65d970ebad39ad82c21c3573fdd87809e285153dc7f6a0792ff5b0. 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/FRX201763667 — a six-check JSON result.
แผ่นดินไหวในใจอ้าย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec99912e4bbaea0a4d3e66621daaca0409b6b903e35ad41aba99e3a80785491. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/FRX201763687 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69735d15124bb45c43b69749ae3a87a51962664ee8e9ad393de1bb5c977f8f4d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DGA052017649 — a six-check JSON result.
ทางออก (ความหวังและกำลังใจของเกษตรกรไทย)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2b290a04a4100fa5bf21ccfad8acf1776f00bee869f4db90fe108cc2909d3b. 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/FR2X42167940 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd628553bf49f44d1addcf7dee1789ba10874a89d1d7f704918d49d6515dcbe0b. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2212088 — a six-check JSON result.
โคกหนองนาจากแดนไกล
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764da8e55857238e5dd975804d2e5109bbf238a17cc96839cdc8e0faec57fcb7. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DGA052265514 — a six-check JSON result.
ด่านจับคนหลายใจ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e445d6abd234d3add1884a7417890a3d1adab2be3611a43b59447a2447f0a81. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/DGA072274673 — a six-check JSON result.
รั้วของชาติสิขาดใจ (Acoustic)
แผ่นดินไหวในใจอ้าย (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab034e026c26264106da2591fadadfeff388e7b75d4723e3b9ab48476e101f03. 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/FR59R2336480 — a six-check JSON result.
ตราบที่ยังมีฟ้า (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3a0a249a33dee249d06fac74617b6081755fe36c877e819d3263530f28f807. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/FRX452324881 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86ac7f12259e558f951bacd79d79d54c22edf44cd2530e867230569a5d79ac5. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/DGA052430224 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fab79b5ed1c349401ffdeaa1f18e7d0f1cb3b3e9e1cb3976ae85e6a0a9e824. 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/FRX452527440 — a six-check JSON result.
ต้าร์บรรเลงโหวด
บ่าวอีสาน สาวล้านนา
ยินดีเป็นที่ระบาย
ยินดีเป็นที่ระบาย (Acoustic)