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 0x377c72deb04420fdd24895aedb2ccf8b6777474d678d454726ac9528dc140a67. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33a3c26d-2e75-42b6-9717-07aafb7d4a99.json and https://artists.proofprofile.net/proofs/artist/33a3c26d-2e75-42b6-9717-07aafb7d4a99.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 0xc88dd5bdfe4e3dfde406340465da2936884bde5a2a08efb39e7d91cffcae48ce. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZK6F2401536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8965843a7beefad0085ad82dadfab2a889b0522c47a6f49c4ffe1441dc4eba2a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZMEN2428808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb412ad2f78ccbe62d0be058cca11e83738acde0b7653191d9eb8d0a2302b4093. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZMEN2427787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d94da09689b0258dc4fd36879fd159a904305ab1698ddb157dc85cb4a313604. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZMEN2428345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a675324e3bb4a13bbcb07edd34191ebc9c81a31ed7b49dbebd183ad40c55a2b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZMEN2428809.
ABRO MINHA MENTE E CORAÇÃO PARA ABUNDÂNCIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60ef994185877747ef30ded72ced49ab961e3c8e06ed69bf0991044cb87140f. 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/QZMEP2437958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbfd5db2c559bbaa8a2949aeff4d21412e4249c46d23b0c56f34b3f49efebfb. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZWFW2424888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191b9aec0906e30e5a7af1fd0a43c3d832d3d45f0105ca82dd5cac53216aba25. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZZ792476161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31ad2d21794642e3a2dcd3da3782a4733a998364399c5b4643062b51f80bda5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ792491943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae946c489ad3ad4043f4e99f17c958298dae58f1bb78552c3edb32c0880f409. 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/QZZ7Q2452644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eee2813e9b6cc4b3fae043a7fa60d6285896f1f975ba2424b79f89775f27640. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZZ7S2425629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6578c40824500900247d8b1892b8468a06b5698630bb8f3ae378fb15f3485c48. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ7U2464296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc416965a70abbcdc189efe8774e86062e3c022b4aae49a7a1bc620014ad40359. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:16:10Z), 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/QZZ7U2466403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515cd27820aa2cb794655ec5a3bab326e547e24ccb6623967307ebd958a6e544. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7V2523261.