TRB may refer to: Funnelbeaker culture (Trichterbecherkultur in German), a megalithic culture Tap, rack, bang, a firearm technique Terminating Reliable Broadcast, in distributed computing Tom Rob
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 0x8b3ea408f341253683c9e23441ef800f5f6875fa719dd6d6886e298d83930db7. 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/d4b30184-2997-4b01-9004-0a23f6281b70.json and https://artists.proofprofile.net/proofs/artist/d4b30184-2997-4b01-9004-0a23f6281b70.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 0xad4b7199c9d16a57edf616bd26e348a2b0c147a45cc73ee27ca25768ed360bb2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/HUAC60600744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3931846f1faddec9e77132e6dfcd009da5e2d52cb36798063365b479469774d0. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/HUAC60502629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe731003daa3f7d91732b1a516d69a344ba89c44a12f74134cff528ef8ec80801. 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/HUAC60502630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71fcf68a42ce95705c0c229236de080e8a6b3c60d01cff30d85d30563a060ea. 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/HUAC60502631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146465262bdccf01028e2a72f71dea623737c8616d48b016a4fef6bf7071eb24. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/HUAC60502634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc05d3d2dfcf79992fe5d8a7a9604862799a7e7b533b092796601f66d198400. 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/HUAC60502636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919e05b7fa6c1edd89f059738ddabe3d44fafc398896a9bda7496b547c3b7792. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/HUAC60502637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf23c5b17553962e21acf80590be5a7b9f63893f8c77662d6bbc1bfc4ad0b280. 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/HUAC60502640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccff7dfc456c9c22b1fba72a525da282236ee63b814e5496ed17e82b5f876ed8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/HUAC60502642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67010ad82ad31a0a64c52019330ac56d7d36a35ba62334b3375ba91fd02ed9f6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/HUAC60502646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a2ed36f73d2e119fbf9efbef846891d6b2d7f9564e4e3edc307ac614653b47. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/HUAC60502649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca44c61cbd88afbafec01c0c8c6f5bd0c1b99210a06682a216639cbd37ebd3f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/HUAC60502651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4865e1528caea8a6ee62cdf8d1f0b740b7482cc9111dd5dc60c1ef7211b14253. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/HUA631800459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9274c7c6e91ddff052d94fe29fb8ae2b3eb0975718e586c86b5f01c89fd90341. 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/HUA631800460.