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 0xdc317fb68deb9ddff2b7878f9a384e97105286952bf5f8b4dadf0f0867cde599. 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/1a4a3040-3475-41b3-b9f3-e8b42650a184.json and https://artists.proofprofile.net/proofs/artist/1a4a3040-3475-41b3-b9f3-e8b42650a184.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hello (Club Mix Extended) [feat. Jack Hawitt]
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 0x7cce4606079b5000fff25b3689197d98c1a43d0f3acb268361d5e6778b157be7. 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/ITKG02000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb870dd262404beb210fcddece0b93c8d4799b750f7ef37f7553776426d7f6129. 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/GBKQU2116502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a293780f69493a0762b4e1f9b246efd7e81077c0cfa90961618811a5d40bf7c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBKQU2241284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9662b8b1ebd1b5cc8f37e122b8e38417b7d1b48cd96f4f09464f55a473b608b6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBKQU2348424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4c8c2e17b2a67cbf4697132530b2e0727538f0dcc32f60b3237a3046da4ef5. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBKQU2376782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8743138b506a7121983134cfc917bfee33adc6b9ae9cc43267c6cf2ae02bd6bb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLV62305534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f41eb5c6fdf08010259de630e2187c4339e70c719f190e0b428ca783e45014. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBKQU2467998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c090d50842570f1728344f41e5cb035a9e178c7f320d04d7a82785797f2d661. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GBLV62407024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa60e6e9e0bb1f519c4ba9383c0e8561fa1e58636cf4201d8d7e1422a60652cf. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBKQU2514012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8635d376519a050bf550389090661135e4d69687484b779dcbde0f7217b47ad5. 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/US83Z2510580.