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 0xdaf4b817343f95bf27278fb98e5c8c5c02f20dbb305590c17a84e32d759bae5a. 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/b9fdf175-3e60-4903-90f8-03684655fecb.json and https://artists.proofprofile.net/proofs/artist/b9fdf175-3e60-4903-90f8-03684655fecb.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 0x8d36c192ea33945249e48df3d423a41f2b292ba1fdff24abb1faa00bd5be70da. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:41:14Z), 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/USA2P2335836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0bc1006e27064dd2d0e4a354293c841ffaa4d8c7137df87cd8aa258eefbd70. 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/USA2P2335835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90412e9655fa9ccc499811a74d4fd1aa7da2ca620c839f6849795c0e1a428cb4. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:54:42Z), 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/USANG2243040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df5883131849434757e829f0be11a00fd674a0d15ec3bd583c0b5369acbd432. 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/USANG2295454.
if looks could kill (instrumental remake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e53d9add080c72098f5339611a6bdfd954d7b0f4653fc1c6c53734ea39d90b8. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:25:30Z), 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/QM3DF2213221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d13bef6e18cdfc29ae54ef42a6bbe7d9b2b2dc93ed7b92ae655cb17bbef1c6. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM3DF2213222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056d475a0e1c0615e149bfcf6a4f7d7ebb0e49d42d2e27f48a09c96902f766c4. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:58:36Z), 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/QM3DF2207819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfffd3f972de19d1a09861db922347bc7223d6685e4ec5a060441c23839827b. 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/QM3DF2247598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b0590b0818c86f936539dce3c83b80aacbfc4271f27337c32331b37764192e. 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/QM3DF2250362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5921ea3c3ae6bcaa70ff2ba84fac8400b7da9ffb35983cb341a992ef650ed7. 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/QM3DF2251751.
Tricky Disco x 12 Inch (TikTok Remix) - Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3432eb448a01b2b7b4ad4e7c5133a29a975cd129cac79413d84fd063f31ee529. 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/CA5KR2429576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9b670a7c0711d00edaee3e73f18e6112cc089e891826f25a0fe9db74650dcf. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CA5KR2516023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108df26f5c894d704eee4a356a6c29b501eb878d04edd87b8c9a32b5b6e11ba2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CA5KR2516394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cff12bc66dd66b81995d43687859aaf9b64b77cc985987465539d2c9f9f6ac. 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/CA5KR2539393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecd389fe5968edf0e4b4e1c87678e4776a9308190e8ab060eb6c281435bb574. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/GXBAV2117860.