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 0x5d88913b5f1acb817e1f239440c492876c271dcc77442848118a8c3c2f30e647. 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/6c1af54f-e46b-43fa-89f1-bb57475c7ef3.json and https://artists.proofprofile.net/proofs/artist/6c1af54f-e46b-43fa-89f1-bb57475c7ef3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Somehow, Somewhere They Had Heard This Before
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 0x8312b3ffadb8ac024bb1a213fcb62dd2d1aba877c2051971a65781b8042bb706. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/SE3JM1800601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935c876702c791d6e2eec3d91929464a1c80e43735ed51c33ce0550b8c84500e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/SE3JM1800606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438725118622ca811ae0f61bce69069be35aceb127b83775a6af0c542dc05fb2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:01:12Z), 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/DEFB41900416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3cd20091b9837d92352b8a728b68e96b7db88545fe8af831d3b6e901228d03. 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/DEFB41900417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94049cd1d019c12e4c89b7e59e43f986fe3b128a5c20648c152799a2966f8623. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEFB41900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9a070ceeee720c7633f7eece6cc8017ca6977799a1adf4d39fced3e89570ef. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/DEFB41900419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2015d162725d40b4052c123365b1c7e5ae5e20fca8f76506df57623fb0bae55d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEFB41900420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61226349a0e8940dd9480a78c46e8bed9332116be5a90865ced18e3912c221c5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:35:01Z), 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/DEFB41900421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf067d098b4d751959c82a5c74038308efafed4a3e72a3c35b1429faa967c8d43. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEFB42000495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3607cb09fde1379bd65ce75d45706f38f86e3de4b5b6028a4e2ba889c00318f. 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/DEFB42000496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5626705a445ed2a49872a2dd7c9dd5ac6cb7ba9518f9a9afd3537d58221002af. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEFB42000494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce945b6b5d12ce33bfd1162eaa442a4a6a683485ecffa6b1037c1881d372652f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEFB42000497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab84885e61452cc7ec033c6a7f692c76a12b9a5a2014f88756184991dbd41e8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEFB42000498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438be0e1703f1c104e4c4711cb5e2b12d2f39518aba798e6b413418333a960b2. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DEFB42000499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0e9f69b33eed1ab13dc011be99d9b84f8ad493bf06b3ef166c39a663284933. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEFB42000500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f42ccf1a52101ba1cb35454ad9a7fc8fceaf259c1a43e0e387a6412ef00ba0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEFB42000501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618d1544b4117a627ecd0b844c5a8ffb1b256714ce521b45e03829224fa98dfb. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEFB42000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd074cbd2083baf6260e861603892a14b36ef73f8f34beafe80239c1e0d8bf213. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEFB42000503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2243773b39201a2c037a4ff94de93802056bf84d7aeee4d9db2d3a7ef767806. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEFB42000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62605e41e5a39bd178a8d7b46d2ecba6dfc20c060248182980fdf266c9be394. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEFB42000505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1389f3069f7945b907c303d131e429a90ebb51e88fd9498dce0331787fc4e380. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEFB42000506.
Stranger feat. Years of Denial (Shifted Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118620c7437a948c5dbf6f3ead068838358b08cd32a5dbcfc9c0dfdd0a0cedb4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USC4R2211904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61c80cd01956fb31831e0564e125c4aa9542eb042bc637058a893e5c3687884. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DEFB42400776.