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 0x1f6bc2faf749d718166a87474cfc36775585ad39703e0fef94b0462102f13e98. 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/1a2b0670-60b8-4251-b84a-67c2929d983c.json and https://artists.proofprofile.net/proofs/artist/1a2b0670-60b8-4251-b84a-67c2929d983c.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 0xa9cb74c75a4fbab0739a74dd5d9388c929b06dd5adfa5ab11853de6b35a56ba7. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEBL60317137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee1049d7ee76f2a329ed4b6c283ad8cf8c79d080b45ab1c2db4fdc36b530519. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEBL60317139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e10db0d86996921b4f7ae86ae269d6e41af6ad144c400202fecb7bb8429df2. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/DEBL60331808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481422a1cdbffe4e800ce0f5bf2aeb4fac9dd29ba6bb53210c4e0457ea52a23b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/DEBL60331809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36de59e1d9b264d33f9d216f211e16a7f582685d9a4c7a202f6fe528596a0401. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/DEBL60331814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a935cb2433d2754e110d8aa7add5a31e453edf439939e6231028e70073ee349. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/DEBL60331827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e309ece147c22d21ff07ff7bd9ddfb1dbf2b5a57524b79e5ab042af938a6175. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEN061400910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ce649ba24ef06e18beeb6bc456df899ab0953e3c290bfee964da6dcb449797. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEN061401093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf449ea52fd3cef73f15ccaf5a6cb1fe4fef7daa39ddf13cf83acfb3d5c9c2cf. 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/DEN061401095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a8c1afe63ecceb5ca5d4e3e5a476e50fde6ea43b1f58572faedf4b2c8ec7ea. 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/NLD682301289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad0452fc7f904ff65e6f9fafb77b9c6a3b68decbe86505a74059ff5096df1c9. 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/NLD682301288.
The Best Of Armin Only (Live from the Johan Cruijff ArenA - Amsterdam, The Netherlands) [Highlights]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c01f6609701c691e782246fa821b85ad6b5201d73b1d9a315de66636548258. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/NLF711909219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8763a362acf032c23be36f1f16c215708a1aa164e89bef4f304b5e9527533c. 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/DEN061400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fa1c9d4ac405ef8c409f7707c45f399fd7d5228668ceafb475835e5f4a86f8. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DEE860201114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fe141892c555dd25963fb4f5f066a812bce7a7a160ffbbe2a5aad8e6afb244. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEAF71252757.
FSOE 876 - Future Sound Of Egypt Episode 876
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27333dbcd83c14d5c935ddb9a08642b563f2bf822bbf54dbb1c7db25a2da88b. 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/UKRMQ2401182.
ASOT 1195 - A State of Trance Episode 1195 (ADE Special) [Including Live at EDC Las Vegas 2023 (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5711c98b93886444f35bad390e9ee966e8aed1c6bb703f98e35bf475f19b27b5. 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/NLF712408761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7aac610223c63b33b16861bfcef89a7392e737179f08fb0c9461af4d551458. 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/GBGWM1610087.