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 0x4a4306ee187e22bc4abed8941d83476a9e581a0c8ad12ff1e0783c239902acdf. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b13d12f-82f4-4c4d-a91e-193e1c3758a0.json and https://artists.proofprofile.net/proofs/artist/0b13d12f-82f4-4c4d-a91e-193e1c3758a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reload the Summer, Vol. 3 (Extended DJ-Edition)
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 0x4a506334f3c177d432d9aa483de2be8d9f3000f1f1316b698aa44ce02d992e24. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEZ171602132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5c0a467abc4abe934d25b9fdc49b04a92fb9e379aa39a999c34bfb7dd7657b. 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/DEBL61600294.
Smooved - Deep House Collection, Vol. 38
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bed7640a72ddb89394eebc0b6a967c0313e35e45ae1728fd1f0bc56876ee961. 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/NLBW51910015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7847a89002a70e4a26d27731f909f2d49bd4041fde9659fdaa929b35fac5f2e6. 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/DEW871808933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5639d4729806a5f5cf8d0d6c3ed9377fa3392d6c1f406c9697ed2e6297ac97f7. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLBW51700470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918277840eba0982c55d3b5f26b952c38d7e20ca8f5bf01347d7edbcc3bea72c. 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/NLBW51700432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0042e2733c1feecfafa945a33276c9a1a367474d579fcc7c0d6095cf339983f2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/CH3131600861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14fb0cd7247b88295385abe5b97c06b9be9e5b45e7ee6d3eb6146e5a9661b69. 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/DEN061701120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b494e7176f902fe53381d0f7e93d86a482596283cb53aebc1afcb7441bfb02. 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/CH3131713773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9b8a911e5d949deb7c4042b54b6bfc19aaa7f1fadb58f96da2acb4a7b43ebf. 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/DEN061701201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21595ba56389f6b90f2210695d18f6b8ae19cf8209d9a57407aa6fbe4d6fa5f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CH3131713731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6577f0a45fe2d5c4e689dfd14a3741706a2c875d1942be582b600543912a46af. 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/NLBW51700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c536a3c5bdbf127b252f5e5f4443f1dd0cbe3b5542fcc7ba16b55e3a84862f. 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/DEN061700416.
So Many Times - Fort Arkansas Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9da2b1a97e38429df9762dcf38aa8adf64528647a233218c35c606a0e3591a5. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEN061700789.
Most Wanted - Future House Selection, Vol. 25
2019 - The Annual Housesession Collection
House Radio 2020: The Best of Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291d818c0329af3a4e49632ba36937906464dfbe1883098ad8079cbcc67fdb11. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DEW871810620.
The Elegance of Electronic Music - Dance Edition #4