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 0x4b8c8c9fe716c5ebf1d482037bd1848c6dfd1f772252248de033f5537bbb3130. 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/1832b2c6-482c-4278-b5bb-7ab2e9aadeae.json and https://artists.proofprofile.net/proofs/artist/1832b2c6-482c-4278-b5bb-7ab2e9aadeae.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 0x3b954d7c161e1701999f12a9f87c9fb56f769ffb7c4a8c675f361e22024fbdde. 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/US3DF2421319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe1ae5a3dd23a922135b5c5560c1d44387b9029eee4b9926f2bf42a9ccc8bfd. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/US3DF2421320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104c0a544df0638cb9fa53cdbf225d510d9829de683a954c8c8f9297072f1528. 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/US3DF2431926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8095cd62d1afc0424e6f1093455c8378eb6001445af118ec88004eea30b5e522. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/US3DF2441422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6ead3c0d40d6862e6eef16718ed8dc62b57cda115c9b444aaf7cc20d7d272d. 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/US3DF2473652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b85401e708eefc6adb19bebe4879b875df377e738de595a897a365c0cb2da6. 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/USANG2433276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f9bd2c3414e6d62f0069feb4311b11b432ed8f1f090a066e6776bad1202b7a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USANG2438506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a8960f0a6ebfaa43e99a5d38f18172235b6c263b6f657a4ba50f4a878cd459. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DGA0Q2486036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5c2537f35012507170a5a57cea692d42e56549dcf09ecbdb7de577cbac6d70. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DGA0Q2486037.
MONATGEM JEITOIS EVOLUCIONISTA - Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb013ce623bb0d72ed1783d2a275bbc84814573f10e569bb031d6c7e2240264c7. 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/DGA0Q2486039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96578543fc45d26fe1119a8ff29d59b24f12143d6db3e34789898f448cb66ed1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USUYG1599280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104fb88f1a821c6c0efb9af229a990d7b022b81b80a53ea6cf2f15cd55f5986b. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/US3DF2547728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5056fbe0cdb36bb3bf9d92426fe4d7c5c2751bb93d9cdf74412caab6c4e0ef. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX872518118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e4abfba9aa0b43987e73480adf4dbdaf006684a1d432963d7efae49a64b5b7. 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/FRX872518120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84339c0edc9cf928cccab69c0384f52e73b192edcc459eef50227b664ec8dd46. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRX872518121.