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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc008dda5d8b4fb009aaa371e514f3f03920dd5ee474f700c34e809c03c381c7a. 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/413bcbbe-ca09-4f74-aac5-882a287bcad8.json and https://artists.proofprofile.net/proofs/artist/413bcbbe-ca09-4f74-aac5-882a287bcad8.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52001091050d7c7cadfcb25723a33b0db28d854939a9e883d45a2ce6e244ca7. 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/THRSP1211862.
หนึ่งน้องนางเดียว
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1e6126e4b53bdc3251af85bdf9af57d59b9cf5b6f37d1b2e44bbf08f0a0f0c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THRSP1211892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34527953cd9d331cb7877348908e1f277c1353f3420b1eae8e205656df332dda. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THRSP1211893.
ทะเลแห่งความหลัง
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d97113a9cc7b4667cf1eb62c386f24f39c729d175cbfb5f34898c8b75dbebf6. 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/THRSP1211898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600d225131d5bd894e14f81342af94cde42b49f83087370b35debab03743bbf3. 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/THRSP1225829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51814cb37f69428b8ab3f2bb4f2de14d75639dfaf7bdb47b69e68c721b191090. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/THRSP1226019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199f04bbd94747afe2166f7cbbb9aec18a939a15d4359e05dca8d10a1c982dc7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/THRSP1211532.
คีรีบูน - เพลงรักและคิดถึง
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52001091050d7c7cadfcb25723a33b0db28d854939a9e883d45a2ce6e244ca7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/THRSP1211862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600d225131d5bd894e14f81342af94cde42b49f83087370b35debab03743bbf3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/THRSP1225829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ba050d4ca44aee31f8d0b1f39fe811d7de442b778e2bac607f1b12e8a6655c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/THRSP1226825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96906edc64c01a738002360f78dba3d044e7eddb7edef77faa2d27816f15faea. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THRSP1226830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f203220dcd27b4a4a7e8e16abd363dd94f8988fbae1f6e9d40f868a4ce8a61. 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/THRSP1226835.