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 0xe14c70aafc7f00c5240c13c2b3307d3fdb235e8c4d924f6e3017b82ed43c3c3a. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6bba2d7-523a-4cd2-85b9-581f262fbba5.json and https://artists.proofprofile.net/proofs/artist/c6bba2d7-523a-4cd2-85b9-581f262fbba5.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 0x2c7d01ddca3f78cd0efa54ab39c9ce80c10e4bba3b0fd9206d973fb1c1d3df61. 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/DKABA9773402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238acbb3cb32e0c2ad74f396e8dd850bea8f29b070cf0b6b26c8d582aef0d69b. 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/DKABA0701437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d9cadad7edf1f2f622750f6c7b79469f00f23297ab57aaae6d172dd0aea3fc. 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/DKABA0701472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527fe7a9c728dd0b7e370dbad81600ea771afabac11c5bb8d2403b242eaceeab. 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/DKABA9773408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f0e127b26a0bef65f71c659a07bcf994f77f3ecbacd1d99955e2f5b936dc9. 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/DKABA0701476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3325feee7a4262a3ea7c11118ad35eeb8947e1f2854d51cfcd2d3a72f4f4db. 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/DKABA0701475.
Skibe Uden Sejl [Det Bedste Af Det Bedste]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c64e3bfea4ecc1c8865997631aa9c9169a80baba2ae409ad2cf7e63a45e302. 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/DKABA1101941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb0a4e4d67585afb9cfc0f8ab637933bb5778d98ea17e72433e0e80081b87e8. 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/DKABA1101956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c667ea60915b0caa7cb016610c62eabbc1469ee4174f020dc490d8adf7ddd9. 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/DKABA1101944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7d01ddca3f78cd0efa54ab39c9ce80c10e4bba3b0fd9206d973fb1c1d3df61. 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/DKABA9773402.
Den lille elevatormand - 1998 Digital Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350f4a2283dd2a98ad44d73f494ef31d0ae6796aee9436d5147b321175aa4309. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DKABA0701479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08663e83d4610173016ca60678d3c26423680431b9070a422903f5d4a5188fec. 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/DKABA9773401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd95adba35c8e8ccd40e5183fc251395f7da4c31336c30908a1eac0b1c0853df. 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/DKABA9773412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f232c2c345bed1a7307e50711e5ed1ea667fb337922da6bb35334020ba250ca. 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/DKABA1100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c64e3bfea4ecc1c8865997631aa9c9169a80baba2ae409ad2cf7e63a45e302. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T16:04:31Z), 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/DKABA1101941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f232c2c345bed1a7307e50711e5ed1ea667fb337922da6bb35334020ba250ca. 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/DKABA1100087.