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 0xf3562f112324126445d403e49e1a7515fc712d11f615f10603a1611e9e0cbfb6. 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/8c505dd7-7f3c-419d-8043-260a9fad7d7a.json and https://artists.proofprofile.net/proofs/artist/8c505dd7-7f3c-419d-8043-260a9fad7d7a.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 0x95cf112ee4c85037521c866adafb4c5974fd4e55cf0461e4cb208c0dfdb60e97. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2377528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609d9449f72357933473ce839e9fb94254d1a2d8915a234404fe959abcb8519b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR59R2469872.
เธอไม่ต้องกลับมา (Just Don't) feat. Jorin 4EVE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aacc438e2034d5321bc649dd3ebebc15e413a9d335f2a2264f1fe1e9168393. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762312944.
การเต้นรำของเงา (Eclipse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea94e334f640da48b057839f90e4302cef763a72bd62a2c41abee1d2f73266b2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR59R2469875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b6ebcfea4ceda52534d555220220b83fe87d97fc954156a44eb012202640f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062341042.
ฤดูร้อนที่ไม่มีเธอแล้ว (Without)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056008d83504ab8fe21c3a1d3f837f5117f63d42b68eb6af8cb96386839ae28. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2469876.
WHEN YOU HAVE NOTHING TO DO JUST GO TO SLEEP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3874f8f284a77c6537277c02b8f78e3bc20975c0776cb3b87414786f22bff5. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/THW092002478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16191849eaab277b629c1b9c57d131fc31481c938cf2d200073f5807a85d130f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/THW092002480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586c3b5b3e04da32a1bf714d4fa4185ca653408c1bdb6cae6d8df944834d6c92. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/THW092002482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a654d0fdd6b15f60f02b71796c30fa80c891436c45b2aa30a0fd7ea523d8e7. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:57:19Z), 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/THW092002485.
ENOUGH FOR LONELINESS AND INTERNET TODAY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacabf0a2c916bd55effe6d40fdee220239bd99029d9258ccc6b7330284fa69ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THW091800596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1a28a6d841955d8effca87136792ba268c60cfd4cd95345a1ba93514934fdc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/THW091801216.
สุขสันต์วันเหงา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f1f9692294d4e0117e240c25736992c1a294ab87320812bbd7c4b9072cf38d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/THW091701740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c975e1c3ddd18d7223102794dbd54a058e497d4d0c353ca9337133534b68d85. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THW091801221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15267c9aebfa770006ff1e961da93483d3114c8d5fece33111cd78f8639c6f01. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THW091801218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c55fdb742d9d8f83aec6281ff07fb08e1289ac653418fd983ba05447ba75159. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THW091801219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bf25a34016d10392ecf13b6443142212c2bd0d24816e22e90415ab4395711b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THW091801220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ee69005b90bfe20e20bccdddc04d5c79194ac5d5ddb750c02af4dd43b7f6a8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282421346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b6ebcfea4ceda52534d555220220b83fe87d97fc954156a44eb012202640f0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA062341042.
หรือฉันเองที่ขังเธอไว้ในความทรงจำ
รถไฟเที่ยวสุดท้าย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873439571ad3f01903556c1bdb1efdf18910f145c3c3f772e3de96278c9cdd0d. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/THW092000084.
คนที่ยังไม่พร้อม
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751988b953826bc990d36a5fc1a27f38a052445cbfb10863e53f3c2538c4db16. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THW092000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4fafe3fd559da33f0238795855f96ccda1b5e0383b5bd99f5a8ab130cb6d9a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/THW091901569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3408129388daa2db5f5660e11f5467387c7187d93f3c483fe5f6139e4bf8aff. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/THW091800715.
เพื่อนชื่อความเหงา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacabf0a2c916bd55effe6d40fdee220239bd99029d9258ccc6b7330284fa69ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/THW091800596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f1f9692294d4e0117e240c25736992c1a294ab87320812bbd7c4b9072cf38d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/THW091701740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefe654783b6fc978ea4bb7803648e3af76de812598eff2d7cb1ec67b7c5c6f3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/THW091701235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13411b9b7ffb2edd6f0b40c27f29780c9b7540e6c9b78974416c4c5f762d7e7c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/THW091701232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8925e8eda66b8304d47ca1ff90647a3262a318f778569a3908bde8599f8a5f86. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/THW091701229.