thumb|right|A well-known example of opposite mindsets A mindset (also known as mentality especially when considered as biased and closed-minded) refers to an established set of attitudes of a person o
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 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 0xf0ca86e82c0982f3becd153d1ad821f9e2e484a3353d579f41f79cb448d4785f. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45efb878-6507-4dd7-b477-5f87b04c1c3c.json and https://artists.proofprofile.net/proofs/artist/45efb878-6507-4dd7-b477-5f87b04c1c3c.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 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 0x5342bf0a604e26c93930cb19aa6027473508aefff237a25cbd9617264e042cc2. 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/USHTV1200298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb43d93830b8e49a1c8b9b8c28652eb3fcb2e4285ef08c2e9d11aaf67aa7954d. 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/USHTV1200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80ddd5670066c0445c35cf72ea808547141e50eccd9cf9b54f5ef28a670def5. 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/USHTV1200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a197e137bdd57f427ae0a94cb72d842f9ab185649c0aae64c94dbc5cfa6597. 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/USHTV1200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131f1e05f0c9ee2e4f4da7005712d6ac4b0e130bec5e4486f34a1f171499e0d5. 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/USHTV1200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03673d88154cb85ecb096bab580fa082f691bf13d34f1acdeb785fca008d8083. 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/USHTV1200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fb1782c11bb87bb1ad3defb86e207bc01e506cb7d1e754cf72be79d1fead57. 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/USHTV1200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b40e25697d0302db808076e1fdff2ca230e4c8af6cc684f674fbb883c452ac. 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/USHTV1200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb01937cf0711870d48266ba4e8fbf6d85b82113ae28d52c842933e555b86019. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:59:27Z), 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/USHTV1200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10eedde04bb732e0c46d880b4621bda658028c6368426c5d095e2503376520c. 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/USHTV1200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612531182cd527319768d4d5858c12f3ad9a32970aeeca17fb2de7a3df07580d. 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/USHTV1200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2494068edd388d6492a33928ad173b44a6612d4ec6d71bbedb26f3ec984efad8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QMBZ91543594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b65b829a2d30884a97fa92db2059a1820763a0bf5fee2fafcd8f44743f4d10. 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/QZHN81918285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bea6fe7dabfefc294379da729e29e632f91341257ee0920799650dc1ac2ff4. 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/QZHN81918288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e0692fddb27ae9e8de3283e0288a9c336bd19e1e8c5764d098072c95b4f2d8. 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/QZHN81918289.