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 0x599d4349c17b4c556538180b61a2eb3188b749af9ce778f353e8606b74c4b908. 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/0209a4a1-bd5e-4b8d-ba25-58210765a80a.json and https://artists.proofprofile.net/proofs/artist/0209a4a1-bd5e-4b8d-ba25-58210765a80a.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 0xd8f65ff5df477b33bb0a6444592053de4e64e437e124401238c7aaa7da14fa6a. 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/QZUCN2200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910983dd6ec41466cbfc3e9e0c397e73542c4082239d2bb9a81c679496e409f2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZUCN2201545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9068153848512ddc90b93d9a414b1aaf52133ef64051a12fa13856b366e188e5. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZUCN2201546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f45b409aae73d8ae93e5006453ab76d5bab372bef90a3e4de9e37499a9ed94. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US38Y2421261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ffd96e8dbcf5b5378cd1f6b8c1de2141452e37a8001a764eb29970e520edf0. 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/US38Y2421262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8021b5dd63d98e80cc8c9b66e90068d5855a22e8b346767722ff452598e0c74. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZTLA2543322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f578b5e26c09ec2f7b460637f4a0b15321ee3e460d26600e32cabf78c4937a9. 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/GBUM72200532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b4235bbf76b39280d53b7fd617217f2496ec2897cac3036cbc7c5eb2ca4e94. 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/ZZOPM2223795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc22c31c1da2ad8303a48b537c480d759de1d834dbfb85bf1317ba9d1ac33339. 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/ZZOPM2223797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4b7443c3d948c59cdcc991bd06704b169fc3538aef2c9c04a60e003c984dab. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ZZOPM2223798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263703c88e7c67d7d7b32906f0482be61c4b1f57618152501d55212f4de21e97. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ZZOPM2220693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8ce87216c8d80359b7b139574689f184664e4df0ded6217c8925502232dd31. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ZZOPM2220694.
ASOT 1206 - A State of Trance Episode 1206 [Including Live at Tomorrowland Brasil 2024 (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d435543e1dcb6aa84e4a4c41233375d404821233636504795019a045a1cce90. 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/NLF712500183.
Back To Life (Push The Button) [ABGT607] - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33d8356e1de193853c83ffe5fa8ce92a7de370e6d87ecfa357f9a0a70094009. 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/GBEWA2407319.
A State of Trance 2025 - TRANSFORMATION (The Official Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e621669a60094e2af3635000aef2098a5b0e70a780dc936b3a588a6cfd296d. 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/NLF712408839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdab25e20d17a92757423ec0783a6fe72dd1d5b452eede5ac1c47226cfe8b43. 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/GBEWA2201691.