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 0x67e45d8f104324b66474b2daeb9220fe894fc47c293260828a1cd7f5d0c2afd0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4e1e82f-1a5d-47b3-9b78-1d31331574e0.json and https://artists.proofprofile.net/proofs/artist/f4e1e82f-1a5d-47b3-9b78-1d31331574e0.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 0x6b5e16fa2a0305802c0d3866820478eab8328bee15f117c38749cb5c3db74a93. 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/DKABA0701954.
Mr. Sweetheart - Hvem Bliver Dit Næste Offer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1567f6e01faa36877255d98a1dbf4cdaaf63b9a44b82623f5e75d7dd22bee15. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/DKABA0701956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad220bb4634955f96d57257c227b5cbd086772ec54507af55e5851dd4ef7f79. 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/DKABA0701960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e0ce7bbfb63aeabf22a854defee181d8e53806d0d611f4162ce49a24089a9e. 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/DKUM72100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c311b25134bbba06bcd2c812712c752986a372e128416a4500fce65c14f5a87. 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/DKABA1102331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe261ecb01e6e3cd08b9b5d1dfbf6a54d6634c235aa4cfe10b2acffc196a957a2. 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/DKABA1001883.
Lad os gøre alting sammen (with Zlatko Buric)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f6eefd2b0568edc1852b08761081061ac1a91dc7558f0a431410c54165a657. 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/DKABA1001892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12dfd566c31d5b7b415f4a657ac8473a64e910359d08a362c0fb7f27018fa82. 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/DKABA1001885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0327997a2aafe1f75fed3685653ca36fcf4c25bf69a9cd38d5ecf0a607a79652. 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/DKABA1001889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00adeccb26f18368d34c0916b50046aa18bbbee03b3280cc4cd0ad4c81d08af3. 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/DKABA1001875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929b123100cd3c22dc8f9b7eb11053a736a3f437be3cc60f4391e5b96e4e45f6. 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/DKABA1001008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae79692e7be67fb7756de003cd019914bd7035f27d3eb8a6d130aeeeeb5769b. 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/DKABA1001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16efc72468104c23c284ec0b66e1146a8f9497a4e47e39e1715b246b03c542aa. 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/DKABA1001011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba97042d612fd6ed8ee4f7b0cda9bb29e342b5b47cc4bceac204508011ffdf8. 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/DKABA1001015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6c2b79db09e1d0416876cc6a0fc0754541dbd3f0b2cbbfa5168363c5ff84fb. 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/DKABA1001884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0327997a2aafe1f75fed3685653ca36fcf4c25bf69a9cd38d5ecf0a607a79652. 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/DKABA1001889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca9826108036b0e9b6b77cab8133d190abd16ea703dc1d51407be4ccc489568. 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/DKABA1001886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e8ce13225399dc2ffd793ef0af1e4b4575f8310fce5e15b0ce02fba7aa032d. 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/DKABA1001888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ee4bdb5722c8e35e6cfb7efa88e2311fab11d618dcd778e681fd0192580e24. 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/DKABA1001896.
En sød student fra Holstebro (Er war Student in Heidelberg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a79c2a5df95bc551d0bfcd352da51d416a06762d8eb2bbf6198a83884d584e. 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/DKABA1001898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408615b823a02813a6b051cc0571bf0f77862c063381594946d026d4b6b14f0f. 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/DKABA1001832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe930da02c2ad4a70f2adca72ad43b747512fe406ea606f260da7eac3c18d1f23. 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/DKABA1001868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26e45330fb29878e03a860cdedb9393cb07911f74c6a9930973b542b1d32bb9. 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/DKABA1001869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87348427ddca63d5f40eae4eafedcb9657ff919b0da5a189a80cd237d3c50bac. 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/DKABA1001870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c60774ed52653628a989c457638a606f5cda9ff6fdf1c02084e2abd4617da3. 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/DKABA1001871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff52528324562ec1599bfc6af433bd3190ad8470480a77c2d9d3116f0ce504a. 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/DKABA1001874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00adeccb26f18368d34c0916b50046aa18bbbee03b3280cc4cd0ad4c81d08af3. 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/DKABA1001875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c8c6cefc109d81ad62170b8254da139138cb69a1d085d6be4b1ed7428da803. 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/DKABA1001881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0c7367b2a4dc937ac728f929ad525ca330386b0d5d0e1c97bbb2899b5bebf9. 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/DKABA0701950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5e16fa2a0305802c0d3866820478eab8328bee15f117c38749cb5c3db74a93. 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/DKABA0701954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad220bb4634955f96d57257c227b5cbd086772ec54507af55e5851dd4ef7f79. 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/DKABA0701960.