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 0xc960d4fe18c7f27d4768cb1ec8b6253f6d6b03b1b2de3de159b074e8cc542701. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/587a02e5-b2bf-460e-8b6f-3a4dd26cc764.json and https://artists.proofprofile.net/proofs/artist/587a02e5-b2bf-460e-8b6f-3a4dd26cc764.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Når Først Vi Har Sagt Farvel / When We Have Said Goodbye (Live)
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 0xdcb8b668c62af47556269a39d35700d2e84bb9db52e9b5caecacb5e4101f0a93. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/TCABX1428346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c1a4d43bb8715c66fb08ff328e22740986ce867cd16345cd256b1465eaa204. 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/TCABX1428365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f78cb5973bde8a2ac6ab69633d190d1d3d57c1ddb582f88c05e5e58d48fa9e. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TCABX1428367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397fe6f97719ada737a2f27f3229f4c88eca0432d3906e7690320c8761524cae. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCABX1428369.
Na Gillean Nach Maireann / The Boys That Were (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321a687f91e6e6a37427416892a32b794567e10fdb3d342e307665746a239761. 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/TCABX1428371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7af97d4a20844bdeb96c5abede4c1eee364c79202d2d2efd7b34562d04dce4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCABX1428373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260f567df91d9b02ff0ac93a00f733dcfe16e327f455a6824ad76184facb3b40. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCABX1428377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5864581af4b88a82907c0d3acab97c66dd100db98a85bc3efc7dd54e6e50449. 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/TCABX1428403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb1851f3f117e2c6f6d217587d76df875d6b8d69bc1837697ff12b26a521307. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/TCABX1428418.
The Fifth Sister / Den Femte Søster (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5f530a34c5481cc3cc2f5fe08465b11fbb325da401ea042ddc38cf080f874e. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/TCABX1428419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4832744da30217fe7dfa9a40479c1d49ad0527778f7e352f4407aa2250bf7e41. 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/TCABX1428420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bdb951ece2afe100c9add9f1aeda2c1e67dec3e2ea8ca4456e41ae3e64e0c7. 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/TCABX1428422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c1a454968892545155f4c465d3e491b2291868277bd3e43de1ddd39e28bf00. 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/DK6KA2400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc575dcb01d66ddcc15b429db51ba6e2f7893d07adbb7d071fbf8b294a3d7e50c. 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/DK6KA2400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d2a86daef1157d08c523b01a821025c41f156e1bc78f764f0c01cde9706132. 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/DK6KA2400503.
Oh, kunne du mit hjerte se, hvordan det krymper sig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327f2c0fc24263e33f1ea0b7776618d41fe85e89b566549cba91239312c6d4d9. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DK6KA2400504.
Jyllands land / Fisken ligger på hviden strand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d19c19d83e49293c74a5ae324baf8665fc076e9e55eac2b567724bee974ca. 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/DK6KA2400505.