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 0x76cb9a806a6d6e96ad0161ad98d21a90bc67edb1a81f0f07e817a351993ab581. 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/d0dd5027-6c72-40bf-b266-56d367694568.json and https://artists.proofprofile.net/proofs/artist/d0dd5027-6c72-40bf-b266-56d367694568.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 0xceb83aed65211ace3173ac8b34344334066680a2e0fd34521ab04aecb621e948. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMGF51400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a2a062cd7e91e25ebdcae30b053c62ff8a54bcf5b3d810c5d47be9643d9888. 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/QMGF51400015.
Outta' Here (feat. Rel$ & Infameezy) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461172d9bbec66093b3fe21a48e78e542f7f55811dffc94bfabb9c10b3d61138. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USUYG1058196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1ae499eecf9fc068d89ed235873472a53f0f0894d50b773b3b3b3f2fb1f85f. 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/USUYG1058198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74baf55e6bdf72ad18103796118f2da090227aa661a4fbe3ac4253ee25cac89a. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/USUYG1058201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2014d061fead51f3ae7d2baf21bb246e9da5806f9a58e010ef198b9a1a604988. 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/USUYG1072791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668b86b1d8fe4fce34ed2d0b2af7382552f4db54cc9f886807a78dc5a36b7a4f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USUYG1073969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dffcedc979187042ebd721f43bc7d315f62002a5cfc9702c3dfd67c42a70ad. 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/GBKPL1784936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9837a9f92e714b0b3bc0aaf86faeaf6d7137212a2b8ab7962b30c76ac786656c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCADE1734298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc464f017fc48754b530e9a084ff24eab657ece6dde2b388c2d86674d322f45f3. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCADE1761394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627667f51518b85e87646973c72ad2a6e9b4d6b115682dfbc81d9786d3ae60b1. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCADH1705305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fa9b94bd79ebf460a91a31c282a422bb1a70bdcfad45ffb36c943100e43139. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TCADK1746160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7fdeb4095f59279337229bd0f37e9440c9f4e06267dcf2f8956ab707274ef8. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GBKPL1802304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199634604f56d755a0783c6415f0549585d5732c526fd07b3410fd94d830cc69. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKPL1802306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0f85adb49b890dcd07ce0ae250dde9f77669bd238dc803e9959177381d2596. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCADR1857696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cdef1e0677b5e84cc4c2c7c9d70de90acd1a93afd5c11b84537de0fbe3f3e0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADX1852226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa82b5c98e90205010a33f5082abfe7cc9d4bb5d6813971090d869dd2593a91b. 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/TCADX1852230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd3bba9eb9299b2dcb8539a9fdbb9da9f99a1553c0b717fc9e239139a407135. 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/TCAEH1932458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585e2800426389715f2524f13fbbfc610b9c8e81d88977e08642ba5693c886ee. 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/TCAEK1962779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9807ece5269e92c95c3b15813cb760d7cdf0978723c6aec7bd2c03d7ebfd514f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM24S1927225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e647cfd13991321c077532182e3a9837431809383b928f638f1f6287afc5b9b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLD91725022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c105816f98e2ab865aa6bc66c591d3f2da821e646d6933df954eda76018323. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/USUM72107366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d158ee7dce37f55a0bfe2dcaa7ce37d4f7ff7922e948bbbaa18cd5b863fb7f6. 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/USUM72118082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019c6bee0abf4bdda34145002a9e3c2f0fd540849391ffb4b4330c7c23bc4b50. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAHX2473667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550d5a9f0dc0834a3bdf8a3a5d885bb7e7b037c838377cb4c9f760c1ebf07028. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCAIE2425494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac2516b01eadaddf5290d04c7afd7a571a1e1f0261b6deef8ee5e04e95a9ee2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCAIE2425520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164461bac8339acd85d3256ab157b3b6fe752995e9df6e41c612d3e1c69a2c26. 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/TCAIS2415152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4394839632c8565164a380b09990a21a41f28a1723d34895965c38bddbabe2. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/TCAIJ2473492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00004994b9a7e519ae5f33ebba8ad808fae4a35051ace5036745a4565298549a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAIL2400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde982f781f421c8d933975c711c13a294e524e7266ac2284428f81c8310b644c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAKA2505672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9899605ddde859b56483861687b6d85c73e0bb60e3fea3ff56553714dc58eb21. 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/TCAKA2505732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bba7ddfbc3a5c933320a43b10274d1ab328a849d85bd0356481b30a1e7b06c. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/TCAKA2505811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc9f2af5d9cbde4ff8286a9c8f0ccaee092abfe0c0ad9f10a40e1c6982cc319. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/TCAKA2505882.
Hollywood Freestyle (Papatracks #13) [feat. Nicz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600cfb9d3a39c1334ef5357f27dc410b31788645be27d9b28ba4a57b8f1601e6. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/BR5TG2400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff99fe8a12017f137ab0d04e1b8c8bf6bd3d863ec64e24782b9fe235b8ff307. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZMER2150181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa8a4435119263edff197eea05781c6329ad8f03b2f9f77952552898d534e15. 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/USUG12105370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d6e5a0eab623930cf48f256bf56ba6ccb55c8895dd34e60acf63812873d1d8. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USUM72219737.