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 0x8be4870fe1e7b9588c05e8adce4e9670f423d6e705ef7c208623dcb340799f60. 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/bcc49315-e822-4792-893a-93dca0abbf68.json and https://artists.proofprofile.net/proofs/artist/bcc49315-e822-4792-893a-93dca0abbf68.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 0xcab29ad0c7a97b6ff62fc44fb0324aa672d7965e859b956ad330a85a67b28227. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:07Z), 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/TCADC1701481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26a24ddb0a59ed887f79fc6b33481e003de6f06747d5f69339f6acd1cd1dd3e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM24S1817370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b150778c68f13cf6189e48018a118ec44806bec1580f62994ad8082edad35f8. 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/TCADX1802953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42a363856b8b67b39ed3811374fd6e99e7c1e8d2cfe0f9526c4e6b2b63ee41a. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:20:53Z), 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/TCADZ1808647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f3745bac1d70a997fbadea52759e720830c08d6ad3905dc627a6d7b071c98a. 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/FR59R1903923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bce15f64ae6ac722222915dead015dda5fa1a28035a73f6b60c9ad750a86887. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:18:32Z), 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/FR96X1935723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bce15f64ae6ac722222915dead015dda5fa1a28035a73f6b60c9ad750a86887. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR96X1935723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70959c9249056cfbb45a57d8304636313bc347562cbee329eeda5a890611df8. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/CA6D21900323.
A State of Trance Year Mix 2023 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104ddd5e3b57bee5f1d0de4374b046772a94adaf54980f6276971e25a242844b. 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/NLF712308624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0da28d5832b35d41d7dec859cf6ac4deb36a254f6ae130319e682240040eaa0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLRD52025935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98222f262ddbe3b0ac17d5e2b14c25c5db8719f36613f618bf6e32eef55a2f8c. 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/NLRD52025931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4157bc569748016a6aa425d4dd15ccaa3e6b469eadb265db5474b8551adf8f23. 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/USA2P1926902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0da28d5832b35d41d7dec859cf6ac4deb36a254f6ae130319e682240040eaa0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:38:21Z), 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/NLRD52025935.
A State of Trance Year Mix 2023 (Selected by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98222f262ddbe3b0ac17d5e2b14c25c5db8719f36613f618bf6e32eef55a2f8c. 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/NLRD52025931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91802f1926f5204afab4e70f58db1ac4bf08d57fd5636d28a600be6a87c35699. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZHN72246541.
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
Judgement Day (feat. Maria Lynn, Kollsion & Legacy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8ed0086538ff711f712f79307d2d570247cff9b38a6a14491ab11b4bdb99dd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USHM91434914.