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 0x323ff45fbbcc16bc01fb49a7ce4d1ecf3b4467341a3c3273d9c6381da1bbe9d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23999cc2-36b1-4111-a3bd-e16fe1475c73.json and https://artists.proofprofile.net/proofs/artist/23999cc2-36b1-4111-a3bd-e16fe1475c73.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 0xeab141ae94ad6e9a47236af0555b6422464f6639e379e38103aaf7b4ae9e14b4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK43Q2010341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d41275e8ff54e0a724636b92593525e7b886e47060e079c5e84338ed326e921. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/UK43Q2010344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec88250389bc4c5301441cce0f1d69e9ec1806a4bb3d832b42d406cd135c51d1. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UK43Q2010345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4631d82e180b0c0717d495f73871ee360c3b23a8831b1c7e64b25fa5d1ebae. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UK43Q2010347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a64737c9a30a6f4144c384f930574106bbdfaec0910e9e2444eca424155d20a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UK43Q2010349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed584df8d0166cd58ba838f1ffa01d97d493c54415f0afb9c91ce2622879e14. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UK43Q2181206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6183b97404d3b59e28c985e0138e3f799ccb5b53cbe552854ea9237e929fc63a. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/GX53U2007339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f48f1e291c968e35bd86818a7c2215189cfbf168731b94e2d34776adfb10f8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UK43Q2181407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6825ab27de6a9608e19603fc244ebb1a12e3a3ccdebf78b637a401d8eafaa5c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK43Q2275690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c64c31cc3d08b00a87e1f175c9301d5839d36b3b87fc84542c40ff6c9416fd. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/UK43Q2296598.
I Don't Wanna See You Again - Outro Outro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b171f7a53d524d753844b6412086e75ba4c2aeb760cca0e4fcaf9380698c5f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:39:02Z), 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/UK43Q2253883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba74f9c7fe5066afff73dac311b1f5cd944a9ef0b4e98786bd86803d8e55703d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/UK43Q2435539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90b074b410f478bde464c5946284d825f0695a7d2bea5dc11c5de8e397758c2. 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/UK43Q2473851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea8d67ee590cd078b810e94356d5716b5bdd55006054d539bbbd7e1f07ce43c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:02:17Z), 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/QZW9L2426616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c77e5a9d1bbafa4ff3278dc2161366472ff65b8fb37a0c55c957b7f61cc200. 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/UKXN22342617.