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 0xa92bfd598f6f007a8fd85ae7bad0b08b8689943805445933fd3b641f413569d0. 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/f44c245e-78a5-4f07-8307-86ee3ee40c48.json and https://artists.proofprofile.net/proofs/artist/f44c245e-78a5-4f07-8307-86ee3ee40c48.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 0x0d439a45b8b52608d9b0a00071cf59762c1d31dcbfd76c8da4166cf5ae9fac4f. 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/ITAD81800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b129ce51395fd960ff5fef193b741eae490984d8bd7472d1dcdeca3436d21b. 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/ITAD82000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc947c49ab171e2890e6e9b918d70a8b256453174d79fa765bb15c878f7624e65. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITAD82200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dc679231e872eafbd9fb413bffc172ead89116f92d2812803cf971b8c417b4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ITAD82200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea43e016a6301f87e6129f063802087a4ee1c173b2cdb1bd43cea9b97326551. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:17Z), 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/ITAD82200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56c0f8eec479f30c833b888451f160aa52cb6aac778ee90069a061f70dbca8a. 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/ITAD81800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d439a45b8b52608d9b0a00071cf59762c1d31dcbfd76c8da4166cf5ae9fac4f. 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/ITAD81800145.
House Relax, Vol. 7 (World No China) [Deep and Chill Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449b9d5a5b4f1c6a59f9df0f1fc665b1a8e55fedf53a0a0363c45fc334539140. 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/ITAD81900110.
House Relax, Vol. 8 (Deep and Chill Selection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879b53c045da1708289cfe53c4633918f0590c7bb866c3080a2bd9593811be2c. 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/ITAD82000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b129ce51395fd960ff5fef193b741eae490984d8bd7472d1dcdeca3436d21b. 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/ITAD82000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0001f078a8984ea9fa445ee8c623c756c07f1ce345c01812721bd8610d1004. 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/ITAD81900111.
Deep on the Beach, Vol. 2 (Best of Chill & Deep House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b129ce51395fd960ff5fef193b741eae490984d8bd7472d1dcdeca3436d21b. 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/ITAD82000076.
Feeling Deep, Vol. 2 (Best of Vocal Deep House - Chillout Set)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b129ce51395fd960ff5fef193b741eae490984d8bd7472d1dcdeca3436d21b. 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/ITAD82000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449b9d5a5b4f1c6a59f9df0f1fc665b1a8e55fedf53a0a0363c45fc334539140. 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/ITAD81900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449b9d5a5b4f1c6a59f9df0f1fc665b1a8e55fedf53a0a0363c45fc334539140. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITAD81900110.
House Relax, Vol. 10 (Sunset Deep Session)
Deep on the Beach, Vol. 3 (Chill and Deep House Set)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879b53c045da1708289cfe53c4633918f0590c7bb866c3080a2bd9593811be2c. 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/ITAD82000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc947c49ab171e2890e6e9b918d70a8b256453174d79fa765bb15c878f7624e65. 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/ITAD82200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab3b477b9330bda2d2b2f2c010122a510dbb99e22241d79721d2d8bac7de2b5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITAD82400114.