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 0x46d9826393c65f7cac85ef34bc43899bfa88ceb9dcce3b8f5805d38fb86bca06. 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/b9b4deb6-9094-4b84-90ea-67ac81a7b388.json and https://artists.proofprofile.net/proofs/artist/b9b4deb6-9094-4b84-90ea-67ac81a7b388.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 0x24e6109dfe582f3d7bdce0ce6eb73221668e00ab5b99d08d1445519dda59ff92. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZTBF2434323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd41084331282a111ea2080a5f677050923f55c0b7e8f93690dce61e182039e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:50:30Z), 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/QZTB52449443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e6109dfe582f3d7bdce0ce6eb73221668e00ab5b99d08d1445519dda59ff92. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:10:47Z), 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/QZTBF2434323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c64c557659b060e6e637ccc967558754befcf48413c6c9f458b3776e8cd9007. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:16:59Z), 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/QZZ7S2470156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c32129a2fb7e4afd758b253b77c5332ad96c9a3199e1bcd1e63a6feb551917. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZDA72539810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c32129a2fb7e4afd758b253b77c5332ad96c9a3199e1bcd1e63a6feb551917. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:12Z), 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/QZDA72539810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48a233a8a7d39826c2b092baed68470a120bc967a80c6b673e12f7ba4a06649. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:32Z), 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/USLD91775781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e6e14dec7aed72a5fc6fc3814a7d3af6d0f4c0f92b8279e69c06160b1fd35b. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:04:36Z), 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/USLD91775782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072dd877db8de1e5b1d82fdf90351b4515eb0feb4386037a49fb8c3bd082479a. 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/USLD91775773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0c323a86abcc402b8fd836018bd51484ec747b4a52d798d47c55e0a061109d. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:53:47Z), 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/USLD91775783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4230edbfd562cfdfee0108c9ce761c46a24ea9c2f537e1310586d6cd42410978. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:06:22Z), 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/USLD91775775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555ee52a353f38d2b853fdd99dd33b666fa1aa33e0fd24766a2fda29fd751106. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:54:59Z), 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/USLD91775044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a35f438b063c39a2aa7cae8e1ace8f20f211544467b8b8913f1e6deac54de5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USLD91775776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a337cb822e8ee8a9aa764c2aa5148a19ea21c8fb00e928d828ba8b7f0ba444. 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/USLD91775777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a5cb33c3afe0e391587b20303d052461dea1481ca17e4478c6b696ac7e0d40. 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/USLD91775785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0ec22592670c0430218e50638bf7281ed85c4f10251adc15460f19955574f6. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USLD91775778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e87f874eb6aaf04f8ca4f0b1ed666bbb7bb611d7f49ec5d69d26b56d8308be5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USLD91775779.
I Think We Look Good Together (feat. RGP Spook)