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 0xdc59b93d9b2b6771f5f2cf4da43ab263fca6be73394d85832da2b9553b1227e5. 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/3370e18e-4d55-49f9-a388-8963d8c30e55.json and https://artists.proofprofile.net/proofs/artist/3370e18e-4d55-49f9-a388-8963d8c30e55.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 0xd9df0af204dc7681252d40eb8c0a7d5d87c3345fa1c39780162c2c8b38379c66. 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/NL8NY2400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8664faed8e17e6bc5ee669b3a884973dafdd4bd4c8b32dfa2f7aaea393d927. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZH5E2336378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698a7090ee4c3433ad660a9be82ffafec91a8b30e9f1fe8ad9f6eae1ae9e8acd. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GX8LE2456369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e271333192e79b4d612ff5293b8f529895651beb9290a212a59d59c72c674d8. 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/DEPI82430642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7421d35f695753c89ce911b1957093810c1ae1f8187433bed024521073ed5df3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAQOI2403383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f4e4377d856f6765113b9ef3a1aba9c9472989d0798139382e51627d51578a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZVEM1817392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd1e74607f90063b6b8de729e6faf025518e4c671bdba0947bfb10915311ec4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEUD42446750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192fb7e00d43bf9b118eba1c3a3c7c21ab2a8b7bd2b9ea16dd5da407374d60ae. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/DEUD42548838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b34a55d275c9b7e227bdb6bad0a610b834fe0d80ed4b2f2f8b7bec9ed56a32f. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZPEW2591090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd208cecadae8382d983b0d26518b4c6fc356f614ce645222f86495ea248b878d. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZPEW2591091.
Clock Strike Twelve (IRXN & Kelly B Remix)
Clock Strike Twelve - IRXN & Kelly B Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88702b5020471ffaa647183f218d90a9e808dd0e2dd6c0462ce4ed8d3b150002. 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/QZPEW2568013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd965b70ca91948bc8a246fc436ef47f30a6129604599c5cfc6c0a79a1a682fc1. 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/DEUD42551357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd965b70ca91948bc8a246fc436ef47f30a6129604599c5cfc6c0a79a1a682fc1. 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/DEUD42551357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b41603acf871e9799ca463109c5a9ac01279094aac917246cb013de3e6570. 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/DEUD42557294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d86bd705c7879b602d720a5b1581dfd35e479bc7142c4e833a363fe9f84b672. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEUD42557295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e2824858b93b455d0394bbd7a9655b9f65b9c3c1668532e64a6f3606b6c935. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DEUD42557296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd555462f6f88420560047fc93f1302d1f20c76011200c96a82197747ef8cfb9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DEUD42564699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c758e16681cf7f5b4fc34de3987b77b60c8d3863e7bf58ad1651732c2102090. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CA5KR2546816.
Don't Kill My Vibe (Stripes & 7sunami Remix)
Call Me Anytime - Toxic Wraith, Smurfy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6b1bba72a0f8ce6a46793d9cc5d22d2655c516d792224dfbe90dccb641eed1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL5WB2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41108f8ba33d7baad52b1dabd3aa6751024d16015534dba1584eeee9e5437e1a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMHM2318560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57118261e6e9275c8677c756988e56ad2430f714d98cdef762702077ff2d21d. 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/GX3HH2289340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975537a044009ac2cb04d68e0b3e5b9ea81c140f53705647cfdf4e6194acd157. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH6542410255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4f803814898c504ca0e643b2783f225031ce0df68cf333772a21efaedc6a37. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEUD42439081.