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 0x401edbe7bf0d371165eccb69369102a24c0e0e70b8e743e4dee6df944aa1460b. 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/c39e28a9-2a95-473d-86aa-50f40b0d8a08.json and https://artists.proofprofile.net/proofs/artist/c39e28a9-2a95-473d-86aa-50f40b0d8a08.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 0x7976bf2e4cb94816f28b3a3af6589f1de8ca11474c38738b72b214c3660595cb. 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/DKABA9814502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3fe0564a9af60e055d881c56d343a76fe4e436a8070fd4134cc91970b02b5d. 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/DKABA9814504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76a97fbfd4eb751e444251fba6080428a55400f746376bea97fea8e261633b2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DKABA9814507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df23ca6a23f5ac4903f68a3a0667d527bf2fdff5e5a6e59151020f336df05f7. 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/DKABA9814519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617501e877693c775c4c2f73003d529eb33d963ab839ac578fcc95ec759d5bef. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DKABA9814501.
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 0xf6fd7048546b10fc4f67d02a8f97e8946189bc65773ae1c06f3d8fc6b2bcfdd8. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DKABA9814503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670299472127a04bf1921af74f4dbee4038b8b4170a38d4261adbe714188ee67. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DKABA9814505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd936cf28a675ee4ecc3f7ed519444c9093c246f05257d99fafa373e3a537e6a4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DKABA9814506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62f833418afd156deff7d4400f778bde2f4f933255ed8a105626d3a1f0481d8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DKABA9814508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e811d34d01ddaeaa9fcaeac371f9ec8dbeb6acd0108e51afb1f9c809fd5203. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DKABA9814510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebd5fbe3791c64701fc38c19e213a0c3b552f4f4cae7e3e2a74310d08ad8374. 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/DKABA9814518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa992af1c09238bc7b66f6449c22aecad387621c65a3d0634f9666e476f026ee. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKABA9903401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612572cc3d3b784b2aae0e94952d4d4be8be47ca59e92443bd85af8d9317d754. 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/DKABA9902201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70faa0a3e443aaef0e1dcadd616d30dcc738e6a752441bbd60b0675fa678f6cc. 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/DKABA9903405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5007d987e2a798ab21d4e94bb64f85501c34691bd8ac17539901f09a39f34e1a. 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/DKABA9903406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804683839a1962b50ea5b2ed489ff68f5eb55da3edd3b63ec4fb65a367baf4e1. 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/DKABA9903407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246e221e124984bad831b1aad10712faf9cd68efec2baaf2327ade8166e2bbf9. 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/DKABA9903409.
Vi skal ud i det blå - Funkshow'ets Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82021ac2cb20d01ab9f161e622e0fe34083ab69c4fb908d9ff072f19ba5776ee. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DKABA9905101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c6ac4a79d2953a6750e3bf65bc66cb72d8929941d9c3caa9370a50524ed315. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:26Z), 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/DKABA9903402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9befb9fb22d55895b512b86d75c4be04ac936ad2fa8a3e9d9ab0115d3f62c4a1. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DKABA9903403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97acd27bb50b780d4aa934ea2927cb56412a90f7262a637fa78e435a5ef844c3. 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/DKABA9903404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf66f36d5e2d1af7a24b3236dee80a7657560c0a986d37b5e9ebbc29ce6295c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DKABA9903408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7ce079e7c6d8b5e3c9d3f90c9ec6fd5d2dfeb3a4e0154ccbd876fcae587703. 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/DKABA1000385.