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 0xf738364198918b3c36e6a5911b73521fe3dc2e0d2ff8e85c17189865643259b1. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c86e13d-1b34-4db9-93f2-ede191e05f73.json and https://artists.proofprofile.net/proofs/artist/1c86e13d-1b34-4db9-93f2-ede191e05f73.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 0x2a0059edbc0d63ff618abe54181516b7bfc89b3802e56fcfa8fc0d6b41bdf307. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:47:48Z), 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/QZMEN2494594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673bed06b5e3a810027686af8079916f42143577941fa60aa391e62837fa4482. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZMEN2494595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d56fd9045839141227831a8c50bcd5b57dee768ba7cc3f0cc2a3a49491bc3c. 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/QZMEN2494596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1faef32245c47947a26ac165b7bb68464f178da5d4be705506d21e7d1fb78128. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZMEN2494597.
I compagni che sparano non sono criminali
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1ca2fd04b3834b1cdbb8ad2819eee9b6422d2d5ef8bf3f6e4f9db30da8830d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:52:32Z), 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/QZMEN2494599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c0d429d395b00c65816162b76d2400a9dd5f7de2db4916929430bd63b520fd. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:48:19Z), 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/QZMEN2494600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabca2a7db5bb085856584921e854d12bdce0948b1619df0d978bd7049c57df3a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZMEN2494601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c8c31c96a41e7b9195653b10db9a8e10ea7fb771cce3025286fe0a84702be2. 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/QZTB22508967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011c0237aa250f7b3dac45358720f977460d42243be04d70d50077af2cd13baf. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTB22508968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad406eb97d0a6fb9918c76fe82d380bbffc596cee5978a39f41ee77aba414898. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZTB22508969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43952089febcd35d7c27e95871fcb0da8b6e7c22d3890b3d3f6667c965fb0df0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:44:06Z), 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/QZTB32523563.