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 0x186226e9123fbd7dbe21951bc043e9ed55ea13849d415f8c387b11a9c0a89bf3. 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/3dd3016f-aa36-477f-8e09-3c593b909824.json and https://artists.proofprofile.net/proofs/artist/3dd3016f-aa36-477f-8e09-3c593b909824.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Multiversal Entities of Abhorrent Hatred
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 0x3f02d4b56942bdca2336eb6732c43e8a6fb3f20d12e2d602b93bcffa9e03c39e. 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/GBSMU6117455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516fffd8ffc38603a592dc9be0edfb4d6905fcce979d7c4d2463da2f2019e108. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/CH6541981687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0bd22054b37a2a1200c9b913a3405a28816f5042d720215c0355289d2249e8. 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/CH6541981688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9341e2fd1305adc72cdc60069e080dff055da623f9125090d243e9d0fde8ead0. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/CH6541981689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1708ebd3011f63bd76c8b8989e6eec95b7f3042d9be5c3cdd404ab4243162d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CH6541981685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c9eb97a6db32449a29bd0f0fc085d9dcf3795cfe531b107fc995ce6609cf53. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/CH6541981686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79a6ccf1796a2bb22505ddf21ef9300c3e92a56066cae229570ea6df70f90af. 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/CH6541981690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73260b4226c2735a1a4a7a84e1c4a9e049195ecc65785ca54e7a3b48fe4376ef. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH6541981691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19a23ef9b82f791a4776de64c67f41e8edc223dc92ce7cccbed93d494cb3c38. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/CH6541981692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5978c3d59e996defdc810e3f2b125633508675b2534ce6a12c4cdbb2c24b3c27. 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/CH6541981693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb597914d11673e5454ae86489e6402d7af76978eeb0cb4a1a912e11e63ca12b4. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/CH6541690411.