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 0x99ea9b6bdc6c67cc6d321838de522dbd6154f37db266a3d761a4ef2debb3f4d5. 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/39a23bf7-b29a-4c9d-a1ff-1260e2f0168d.json and https://artists.proofprofile.net/proofs/artist/39a23bf7-b29a-4c9d-a1ff-1260e2f0168d.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 0x64fdd73aa2220ec6aba401eb66d31b26efc1bb826c8a9123ada5f82045df5a9c. 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/DEHK92109586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab975e7b7bc700085df1af8fb3deb80c8c46fe176679a8858cc2fcfde6fd350e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEN062400796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7044b910f5d1c01caff9cd75dcf3d166a8133a7f6130195fae807c8ccc98cb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEHK92109916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a0e84edc0dc872ce9d5b7570de88497526639947d74e70365639bb9fe4430b. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEN062500599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0946c42ff0794204c6ef3c4bef8a8369b95fd4df72ae3e21dcedf04d9cd2d9da. 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/DEHK91994631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8577344bab6f04853b543c808d31ff2a1cd7edbcb57da249cba58c67ffe0a919. 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/DEHK91994632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e3e5757b981b87993732d3ae3b81823d4599193f44e404026dbd5438f1804c. 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/DEHK91994633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdebc3ba4eb49fb186465ff970025bcbdcde3b32c0bfa8d5e4bc830bb6e4cbe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEHK91994636.
Tricky Disco 2k16 - DJ Gollum feat. DJ Cap Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0036702a084293619421b510bab585231b8432b03d3d54134438969f33662d8. 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/DEHK91580805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53080e58e3d859d49eb6838b6826d93edaf6f343b99849d547d3bdf0034dc70a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEHK92109034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09987a954d57bce00b5c895289375366ba631e24d31333d513ade9ff802b3ef6. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEHK92003841.
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
Surrender - Empyre One & Enerdizer Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf723a90ffcb4e515a27a18b11683d8a9060967dbd55ca4e0c96ce0d252cb7e09. 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/DEPX11800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e8c1ad68ccebdf9e82426dc677a7ceb3b91d0964707eca9475944066a4167e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEHK91994635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9db86be54b90c5a3edfd4848ae3fbe57d385ed56ed8b115dcee9e0f7c52b6ef. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEHK91994634.
Are You Ready (We Love the 90S) - Empyre One & Enerdizer Edit
Are You Ready (We Love the 90S) - The Edits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5a509e4a4846bce3191afb3f930d4058277f8e16269ae66f08161520a6cad1. 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/DEGP21800791.