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 0x195f6eb44dc476fd51ca264aa5158d3dcc4f3d9233e8ab230a7f2748de58cb24. 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/5decc71d-92f3-4fe1-973b-5be102810f23.json and https://artists.proofprofile.net/proofs/artist/5decc71d-92f3-4fe1-973b-5be102810f23.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 0x54ec1a04d6b0d7b8771390510322262104ffb3d341bdd26669c07c6d291909fc. 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/TCAFO2158536.
ไปก่อนได้เปรียบ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c04f96141588f7f7c2f47e56225315cd9ee87e260f71f82b8984cd8368a668. 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/FR2X42167942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe882554cdb82c7dce48e626dc71977097459e2c8b863c80d0e21aef4a419213c. 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/TCAFO2176293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf994d4671f0b7e3e8b645a7f99a74bffa8587f72ec4bc34138f537b549058594. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FRX452134889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d68991757135bb5d7f48f270288f18a2ea7d06f189247c3ca30beb1c844cd94. 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/FRX872102914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc254bb5558750bbe08cd1cfb16a0c1d3486255330ba77690fd8a03d80d68de5f. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/FRS182120504.
ฆาตกรความจำเสื่อม
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0827196327b147c809b4993b34621ad42695f59da4fcde49826f391caeab014e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/DGA062270667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3411b7fb754cf4103f8425ac37303d9bb4038c52877b8ff3ed2ddfb53e14b06d. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/FR96X2311090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90e43f9cc89ff88da292ebc9390c131960ff0da08ffb0c32b53e090f0408363. 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/DGA052348149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b359f354353f6618ccc40a1d26afa471ba43254aaa8d12711b76d9c44923d6. 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/DGA052392574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02beaefbf64a36dc93bdc828fe300c4e0e8b502aa92673c0e47ae3bb7ae4b68. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/DGA082339808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d51583638f19e4d62eafdab5df7c2f83cede0892b1a6e6b168e55c9de2f4bfa. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/DGA0L2374227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79a7f148667de5cfb152df87b1aa3f2c70e04608b178628f00a03e5df4c4791. 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/DGA0P2375742.