{"copyright_id":"0xf5d8cfe04819cbccc6eb575b1c6ea6d19fd5d154c0c8f4385599e5680cad4ba7","name":"Klassieke Muziek voor Baby Flexi Ted","registered_at":"2026-06-12T08:46:36Z","symbol":"NIM0246486","token_address":"0x90e7c117422ae3d8c89cb6c8dfc9858a4333a67f","type":"artist","uuid":"bece42e4-0ad0-40c3-80e9-8c44cced62c5"}
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 0xf5d8cfe04819cbccc6eb575b1c6ea6d19fd5d154c0c8f4385599e5680cad4ba7. 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/bece42e4-0ad0-40c3-80e9-8c44cced62c5.json and https://artists.proofprofile.net/proofs/artist/bece42e4-0ad0-40c3-80e9-8c44cced62c5.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 0x130bb33534327d70429e27baec165262b919b9faa1a0bbd669117ea7056f034b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/NLGM11812692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f1c6ae968e68a69d1e53dc4a2178974187ffa7db00d31fa388adbb48fb109d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLGM11812693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd974cc3bac2a6d313a924fea2c058c40329a9366d241406c57d9a7b0d1f0e05. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/NLGM11812694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf58fd2b46913df307e05f42db6183fbf98ffe5148f7486a7f3a7190bb5661a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/NLGM11812943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9505d92e3f8eb7569d939780151f2a11f374cccb0aa3ccb572ba93f1b169c8b3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/NLGM11812942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421b7dd2a9bf9521028395dc5d257eb0b963718ef99546ff996397b6a093b9aa. 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/NL6VJ2217488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf208dad8db8c52c3c9005012c4cdfd48dfc62d03a2c391dd1862d4a142df8a9d. 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/NL6VJ2217493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04131ba1c141be08877dd36faf37762a1b8a630973fd9d6ab500f379f245f270. 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/NL6VJ2217495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94372ed0a92ff7c167a6071aef5c7ef36ef48508e77b11a5faac5ab4630035a7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NL6VJ2217489.
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 0x4ffe9bfc6e793cd0db9bd3ea94d85eacc9c594b1f6cca1ec4c0b3e6ff9e7023b. 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/NL6VJ2217501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf017931448376564001d5cd73c098a5fae93e6dc42973059b6da7b1b47442353. 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/NL6VJ2217546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7a695bd8de78a5042dc5d7451ba457c562f6df034d5f105504d494157039f4. 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/NL6VJ2217547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9389bb683b45a742533ec387190b037478190c1e8a8af8afb550161709fa1ef5. 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/NL6VJ2217551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd3f1611362202244fc729307cd56e5001f3d6f49a01d627721a5b627a6838f. 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/NL6VJ2217553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9320a5dcdd96692d87daeea18f9b37780c744cff80381865b998cacdc6fb044c. 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/NL6VJ2217555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34776e94d99a6dd2c0303a987e16a43c8a040f65b2f000ff1974eccb2f59e8f8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NL6VJ2217548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3789a57920b289d8af18203b485334db5e1ed1a9a43954becabea68348f0a743. 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/NL6VJ2217550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3712f03f990269fc4ff2be59b00d24466703e81182985e2197ee3b18f19ceb. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NL6VJ2217552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1e8391d67bd9070c5b721256851bf2412a8feced3d88343890e09dc3707d35. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NL6VJ2217554.
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