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 0x345a3192420e01d2975a183243c48654cef013a9b94842e882916284db245e18. 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/396a02d6-6b36-4a70-9928-b2e557daaca7.json and https://artists.proofprofile.net/proofs/artist/396a02d6-6b36-4a70-9928-b2e557daaca7.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 0xccd190b7fdb42a1b69d276928619474d588f3f7cfbcee2221a447beb4f962fdc. 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/DKABA1103165.
De ringer - vi spiller - 2011 - Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cda28f8d258c6ba8b64e12b852b4b49dd4f1410b8fb5f265b0eeaad6ca604f. 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/DKABA1103166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebced1f16364d7722a7d8a842dbc1eca16ebe9f3fc422ee73116294324395f31. 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/DKABA1103182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2073499725e82c5d1d9392dc731110090cb12e33e8ea8cf878d18a8acf77dc90. 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/DKABA1103169.
Stesolider og treugersvin - 2011 - Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59206de843f7e0f981730cbdd2b9647a1f1f485af97659e28897152175e109a2. 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/DKABA1103185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e96bc4e58235a5a0e736081faf903f50f488ad7b1bab3c0d1fc33c6adf8de2. 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/DKABA1300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8536250649316f4e2a1405fab9e976a6ba0ab94f67f7b67276bc6211b002be32. 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/DKABA1300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb90d63af0864ad998ff194c4c31d180bd0395729def016da43f46097410bbdf. 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/DKABA1300506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b450c8e5d270b8ed1386d5fd9d1de86f6d32668513a78532aa6d77c677f041. 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/DKABA1100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a1f5fbefc5930ba2e974a18ce5d64bac28c2023619294fe1f39216a9ffa3c3. 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/DKABA1100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ae393c26120846f288966cc4a4705097d8778f5697747f141023cae06c32cb. 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/DKABA1100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83525268d62b63b828dc425ab7075965b597fd39068410cce9bc9bac98aeee3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKABA1100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb672dc96c40a236cc42e0171f0c6ba261817296cf619c0771f616a84e75bf60f. 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/DKABA1100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46a36fdd2008277c343fabfb617a005a9995c7a5b4cc88934626bca89750728. 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/DKABA1100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c769192f10418771c5889e0e059eef3eaf73a92f653028883581e85ddeb2350. 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/DKUM70800371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52360552b27c1443931f75e32fda51e89a05c1e6f91e18a66b04280bf9b978ae. 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/DKUM70800376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd4161186776c33d40062ad247d6d3bc6eecc7eae047a3bf4bd61734fbc07fc. 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/DKABA1103224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6144a4391997353524714179b2f16070786d052518f59474259bbc7472cfdb98. 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/DKABA1103234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3725142b247537a9991ebdfb30d9cc2de4eb6ab70c9e70ea39387d88e8bb5db. 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/DKABA1103171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140ed13a5d99644c8e09de22beb1ce1fb1881ba8e537ae3a49634819ff2a19f8. 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/DKABA1103180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebced1f16364d7722a7d8a842dbc1eca16ebe9f3fc422ee73116294324395f31. 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/DKABA1103182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59206de843f7e0f981730cbdd2b9647a1f1f485af97659e28897152175e109a2. 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/DKABA1103185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a1f5fbefc5930ba2e974a18ce5d64bac28c2023619294fe1f39216a9ffa3c3. 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/DKABA1100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c90ba2f1a3705322de8c99ba01491b358cff724f92408a0334c3b14ba4c1349. 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/DKABA1103275.