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 0x1d7d642784193ecb5a4bf8990d6123a8d9f170308ebb8f5679aaa771be581691. 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/2dae0a18-86ab-4eb0-98ff-3e0bb38e09a5.json and https://artists.proofprofile.net/proofs/artist/2dae0a18-86ab-4eb0-98ff-3e0bb38e09a5.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 0xa095c7f20b29cfc621de2f42121ff04968ed3b59c46f04f1efdf0960f7e37819. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWU2278547.
BURRIED IN THE FOREST SAGA (TAPE RIP BY DJ HAZYHAZE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b259e4c96e63c3055b2f97cecacc23dd11373c0e2d625a3b9e206d46bf865d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:34:58Z), 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/QZTB82265358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc534e8ea4ab7a57cbe93ac7215917bb83fe752b79daa33ac00f156e18dbf14. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB82265360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed137ceaad5270c801a7208d6200d92130cb23770766f542f3e96ebe87c7e37. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTBF2393740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1efcaf063d1b53ad615d746e3b61e06f81bb89a183d122824c0ff7b01ac63e4. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZDA82589669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d5a496dbfd594f5f1b72f349420ac422639ad5e315ee7d36c680f2f19e99fc. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZHNC2557307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75053e3fdd0e10faa329ec4c731ca778aadbe54a465828becc381e4f1bf78f85. 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/QZTB82570446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2538a58108d74222764674f4c840e188e83889f07731f2a78fe60b787132586. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZZ7S2551725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e58bc5560be201c60f36f73b4b513cc064f0ae5b9ef2e08b76ce271f50044e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZZ7S2586792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d7eb5021b43eafc7b3c9818e19f3568616f1567a90e08748e74325005ad294. 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/QZZ7T2582548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d66876bf31de6aa3d0e40ca6519f9a52b2f95dd9ef6cba12758adb6aa0cd888. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:24:34Z), 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/QZZ7V2569222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52f2ff5e5fba42e0f6ee171e654f95429d78086f49d31feee71ca57a12236e7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QT3EX2560782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867abf7387d30a7d5a32a4ea29f9fc29e1914b859e7e39f2646eda3b7aa300c4. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QT3EZ2578342.