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 0x22223939cea1a31eb1200e2cbaf43a030911407e6816adf2e6aa73cf7d7884be. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70623ba4-3677-43ff-9f0a-50d3bd0996e1.json and https://artists.proofprofile.net/proofs/artist/70623ba4-3677-43ff-9f0a-50d3bd0996e1.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 0xb9b0a8b6fae4a59bcd43fcdfe15435e33d8b7aee24c435a6cc781be2a61644f1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMDA72240752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1554074c480b45ee41db18638a00e2a73df4a85352eaec19672a3eea1e2a221. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMFME2237940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e911ed7a78a2e83279fce2d2215c4903bd4358c05c00a561b6619c1db4e3ad. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QM4TW2376196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752c95f460c6c97148873937b6f0f82bd751c482c0c133d91780158f6cb39a8b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM4TX2381329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b3a483c93d41fd465ea54a091374279eba5a73bac6493e5578cb6c7919b3c5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QM6P42347886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872ba84f98b7f8c2935aef8bd14347fb17310ff7c3a0923aa4660c79c15525ea. 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/QMBZ92331165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64f05d961aeec0c925d1e28d3b2ee69903d0e7a9643031a60926bcb4c76544c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QM6MZ2472554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e90ab8ae585d5377a5908eb2aaacf51343821ca1e27a4f86d9bc515af0a14ae. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM6N22413028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8ad85769241e934a9e5b1605eb2a7b9a1ffa9ccf263cc8b4d854cc6524892f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6N22413139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e381bde0839e19fb385be78fbbe1282ae67f301e961a93f47c6bc5dcc4d6d04. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM6N22413140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3360004eb36da10eadce0c7052963a31b63095be56dd6b21c5b075799b3e2f0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMFME2391640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1d151f9f52c127b18c2aabf589aacb5002164d7cc75be8c6c842b381bc642d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM6N22413308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c76c35ab3e58516aac78cdb78f141af4ca7a356ed180c1382768197117a75fc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM6N22413309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f0cb863f269e63868e84804ce2f4832090a873eb663107f080d22889d09182. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QMDA72420197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb81b019906de8c18b5cd1285f62baa6d611060edf736382cbcb97a761016e8. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QM6P42535148.
Las Pegajosas Aventuras de Sticky M.A. II (Pt. 1: La Maldición de Stickson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fcc4cad2b61f914299921faf98725c9cc17d593448b21c9c6af399cc83781e. 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/QM6N22484772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a8b4dc9a2fab01625d6508a7142515937a533e5c45c253d374c522950348a6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TW2586958.