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 0x1d77de093c5453e9660c234eb365552fa2acbf25d8cabe09b09ce058b17f7ad6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eea15b87-b4f6-4f16-8309-599ce463695a.json and https://artists.proofprofile.net/proofs/artist/eea15b87-b4f6-4f16-8309-599ce463695a.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 0x6c22e343b7f8de7a8779a0e51d3ec8ec6e09916d8d3bd72affe7db4fce868f25. 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/USQCC1000175.
Underlying Feeling (Adam Ellis & Adam K & Soha Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b233eb227aefba5a37b2735dfdd0a201df9f147898118ad39aa0aa6600d9016. 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/NLF711103400.
Time Painter (feat. Sylvia Tosun) - Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2b5fc6c47f2345318af60e50964b512e8e7100377d63329941b1a261e86eb5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CYA111600189.
A State Of Trance Classics - Mix 010: Alex M.O.R.P.H.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ae8cdf5d75768ed30700e88e247f29e0f36f00a75cac2b550d8a505a5c7c4f. 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/NLF712009473.
An Angel's Love - Andrew Rayel Aether Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda05e5ed5125243db94aa0632710f0612890fe0ca6e7712170bcbc465f0e75cc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF711307414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0258ec84f930a4d4c2d1788795a405d09310fb4f1ce267a428f01c3001543f. 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/NLF711307424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1595d7989513131fff1ec92b520f988785a8b80a2d05797c2b53325c1b0be6d8. 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/NLF711203997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4038c6d7c2adc8c7b4df3c11bd5244064f3acd05c468d9a14b81221b3b06b87d. 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/NLF711203957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabebc1635f5f0d40efb86db9154552435929063a88d7fc20ce61ea1316e9bd7. 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/NLF711203965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b233eb227aefba5a37b2735dfdd0a201df9f147898118ad39aa0aa6600d9016. 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/NLF711103400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b233eb227aefba5a37b2735dfdd0a201df9f147898118ad39aa0aa6600d9016. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLF711103400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7684ec4f1827267d29c672f96df32acb65a0f82840fa21253bfcc5f9412d2f5b. 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/NLF711600346.
A State Of Trance Year Mix 2016 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d438577938b306a64d91ad8d551cc0b4b52f52c6e14b873ebab5a8aa061f223. 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/NLF711609545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe251e94b827243ff2acf6545884fd21f3cc49dd0f33ab9191305b154eaf9ccc4. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLF711103322.
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
An Angel's Love - Tomas Heredia Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24990e4e90c57fe57a982ef2012090ce45cc0cbe29ff7801d794f6e8ab293f25. 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/NLF711307415.