thumb|230px|Rossen in 2009 Stig Rossen (born 14 June 1962) is a Danish singer and actor. He is known for his roles in musicals, especially playing Valjean in Les Misérables. He has also participated i
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 0x6d4ba2dda77a6ce4ff9c911996e72d264e4040d63303857dc73b90ec179216af. 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/b0812428-e41f-420f-b4d0-bdb044b4901f.json and https://artists.proofprofile.net/proofs/artist/b0812428-e41f-420f-b4d0-bdb044b4901f.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 0x34dcc6e46fb6cda2f957b6c54a8445c0c152f4066b161bfa15f900e2814a1227. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/DKAAP9700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8260ce4734420505518d9ac0e11f79fff58ecf51daa7fee7d39c5e98c3565df. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DKAAP9400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d79ed2d758f95d1e49e07970c8f50448729a732c84877a85a02222302a4513. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DKAAP9801403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277edcc907705f6df65b938add2a95e590c7816c0e6fb74e374dc7d868e2239b. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DKAAP0001402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e033ff3ab4ab4834e747e4a822bb3764f782de4431d562f06d89d8a11be496. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/DKADG0700365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a21d59ca5dc434580c00a0f803d0d7caa255a3a982514fde35fbc50353fbd94. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DKBR22202801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521d8eec4ec5ddd76cc6d707192ef98bfb80a97b49ac1a4111ef082c13b57f24. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DKBV70856003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43955d5aed0a56250a02cb036245ee8244de7afe8aa2a4cf6480ed7501df2d6c. 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/DKABA0204108.
Vaiana (Originalt Dansk Soundtrack/Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ce5b1cf6193a4bc5631d514a8a6f568b7d65ecbd81b237187daa44cb261939. 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/USWD11678388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4fa69a38e85a737111241c5bc262aa6b14324c080d711bb8ba97dbbefa1a08. 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/USWD10525380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7837a0d7f4d7995baa71150faf1719c94bbc5fe91ecc23e8b62beadeb86dd00. 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/USWD10732172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2aaba2ffeea97c306336b477212a11cead72b9a894ef6900e860d20ea6c5b86. 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/USWD10525376.
Mandela Under the Sun - The Danish Edition
Mandela Under the Sun (The Danish Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0390ca3a005e7723a9bfc8b51b4719a479368c4d2883199a963bdf807d55b3e. 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/GBLPF0214875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db78e4b5d4fc34f5915e4273eaf20c95c2983d2ccbe90f9e6e52df6ab265942. 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/USWD12213766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9699b3b7316e7612f1c8be9d7fd90f2270177afe66515e98692dd902cf4aee75. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FRZ039908450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2fc7c254b3aed2a817f2fd7ff436b1605f6a3d9938c70b912cd61834fb527d. 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/DKK341700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed31c9f2f90291b13dd24d7805958dc529c1d025286126ceee798d235f7ab4e1. 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/DKBV70701212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7837a0d7f4d7995baa71150faf1719c94bbc5fe91ecc23e8b62beadeb86dd00. 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/USWD10732172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb83b22e4d3f80286df4f9d5a125444bb44e79dd6d70a14e609b49ccdd3bb6f7. 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/DKABA1103481.