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 0x4d1204045cc482b4bba325a1e9f63815c8bf42c48acec2f1cc558ce773b21c21. 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/5e1ba3ec-6564-4c0b-8b12-b56114891844.json and https://artists.proofprofile.net/proofs/artist/5e1ba3ec-6564-4c0b-8b12-b56114891844.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 0xd270bfd6be7ef86fca035582fb63393587bcffd48fea43cdd68685e9b30e1981. 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/DKZVA1661173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1515f686dbe3c50cd9ffb7d8a397a21380315ea766a38811d7b7be78b10b8c6. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/NLD681903799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de8663e4297041e20be0f9ed19d9e32a85752efe0676197a8314a6476b33b73. 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/US83Z2002562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36936195d91c09446e3bcafe59847332771314822ec792b1ba0c41e3c44a87a9. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/US83Z2002563.
Ninja - Mariano Mellino & John Cosani Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41356299ff5d8923491b13cbe45f1c329ae0dc102b5c0d03df8066cd8cdadfc2. 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/US83Z2019912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaead0bfd67635af4286290729fded6bb7b0eec960a09305e68601840f261e31a. 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/NLHR22000690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e93007f803de6e606c481087db5aa9ff345f8f29cee6be90249bbe5c17d3586. 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/IL4612100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed835099df8c1bcd96c0042e2ddfdb491c825ac12f43279d65b67fd9ead090c9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/IL4612100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f562064b7e6b91637948e5c7514272c1600936fc46170f2d3e50780b74a22a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEU672201500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3bddef55a7d5c729e141500a1913ad7f6d2a8c963060cbf9523a787990b81c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEU672201498.
Everything Nice This Morning Inc. Volen Sentir Remix
Artificial Vibez (Weird Sounding Dude Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b8196114d0a13688f2bbb84d70de8c157793581585f9ac9e513f724a2a734b. 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/US83Z2501291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc785255679c74e86513277ae4ef48cee395f61be726e9a30d68601701dcd2c0. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/US83Z2513055.
Sparkling in the Shadow - Maze 28 & Kebin van Reeken Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10a938ad4383030a47c35fb87cadd52461ff63b0e69e4befa01bcb3f57ff8c1. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/US83Z2513056.
Sparkling in the Shadow - Not Demure Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4b63c9a2ff0f53076a1553496551700f5a4970fd82f75ca9f7c02a1ae0e564. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/US83Z2513057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846184e704f0c7b18772fcfbcc90f994a2e43b2fc00ea1f51c722f01f8721e64. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBEWA1906077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef19c054d154ebb4104d1b15ac4e43b37c66b5f986d65f57bdd59d5e7a12d743. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBEWA1905663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f562064b7e6b91637948e5c7514272c1600936fc46170f2d3e50780b74a22a. 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/DEU672201500.
Bloomingdale 2021 - mixed by The Palindromes & Dave Winnel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3a517eea64ed455839d7a08e32112110926c2087413d6c911c3d249a363711. 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/NLD682102418.
Sanctuary of Love - Taleman Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa431f103e1b45aedeade8a95bcba47d127529b6ad94ba47378f2575c8c7cf890. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2479716.