Brown is a color. It can be thought as a darker, typically desaturated shade of orange, and can often be produced by combining red and yellow with another color, namely blue.Shorter Oxford English Dic
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 0x5ad3ee02c3796a62b1b73028d442d484ece5680bc7af40eb586b9d4142594408. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8f133da-342f-47e5-bd72-f69178bedef9.json and https://artists.proofprofile.net/proofs/artist/e8f133da-342f-47e5-bd72-f69178bedef9.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 0x1a424daca0e059971a4135f4fe0e42d2ed9d82d7eececb14990ef5d0b6ee02f3. 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/USHHW0700082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fbfacf86c2f079c949932dea2675ebd9a03a8222414d97e169fa4f39940730. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHHW0700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d2e3b559fe954d0f4602deb50aa804d5e3687c3c4b02cf5c2c4f4db41caaf6. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USHHW0700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab82ec7bec9408bb34ff333a570bdd1119ac108077a299eca75e2829c455c6e0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHHW0700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe961be4c529266771a1d089b14a03ecc31145a3260d26c675885b1f24fc7a70e. 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/USHHW0700086.
What Would You Do (Feat. Romero & Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2b3dfb0d1a6ecc232ba89b74809d05e3ce09c6f9787d056aa8584d6ef55be0. 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/USHHW0700088.
Don't Blow My High (Feat. Romero & Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c98f1fa544198cc6a6fb7eb8a7931962fee0449dd9051eef62bad5fb0a6f7e5. 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/USHHW0700089.
My Life Right Here (Feat. Romero & Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed26f3eacc5f97e09681f0fe6ecbf7d309e80162cd4a27dac06dc34614dcb8d8. 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/USHHW0700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f6dc24c265d295a870cee6ee68ed6cc7259322a9870188a1c4bd1e73b7823a. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USHHW0700081.
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 0x1fc66fad9f7487463e764c2d04e5980129f2421483cbb6f1b539b3b847298cd4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USHHW0700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260d0300055cb78e0000723649b77f08a66b9366a946d24e4a7a0f04bc34474b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USHHW0700097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe049b78eec409d0e2bd29c3536f76f31cb0e10b77145ce144022e85e35dcd18f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKG732294351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b8cc8dba95f2a0c97344b32851f75aa83e105a8748ba43a0ea8322bb256a27. 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/HKG732256227.