thumb|right|The investiture of Dame Lourett Russell Grant into the Order of the Holy Sepulchre Dame is a traditionally British honorific title given to women who have been admitted to certain orders
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 0x9f3a475ea578deafa4f06c0a1b971cdf6d0182f54dab0fb75f89abfc421eca8e. 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/d8d46550-3955-4abf-b21e-3dcefbf7af4d.json and https://artists.proofprofile.net/proofs/artist/d8d46550-3955-4abf-b21e-3dcefbf7af4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Preventions of Heartbreak (Commentary Version)
Babalik Ako (Letran Bataan Graduation Theme Song 2019)
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 0x931ad0b4a79b6b3f7585b2bb04ddc38f2e406c997341a2927c7d30d1dacc0ef2. 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/CZUM71900187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6a489227d5d0aa60b75a7ec7225b88a554bb0f20568ccd34c320a0f8d1382a. 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/TCABN1373570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f000812b36d52104ed22d0092ff0d44ad0e997cdce9e00a90c9b840a8dcb75. 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/TCABN1373575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27ee876a6372d1cb0b3f67d6b718d30348949388613a7153718c5a465b5f555. 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/TCADO1848089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053a2c8e8135cffedd24330d643bfedc8705dfa4775acd142ba31c4043e46cc7. 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/QZES71870402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc6a80f6df63601877a20998b78bd4b1fa288af67bd0cfb797315d1f5beed5d. 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/TCADZ1834501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f519fdf9540d331da869417f5bae26499f4d75b8a0afeb4e937817c2e4d6796. 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/TCADQ1895798.