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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 0x55bde99060a3fb4d900d827338e677f5ebbf8361fe253b250511f988ec119efd. 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/3f02999e-7111-4d26-b59b-38e21381797d.json and https://artists.proofprofile.net/proofs/artist/3f02999e-7111-4d26-b59b-38e21381797d.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 0x22918c796364837678252e88af94004c0c045f83ca7aadc5a6404e3597fce645. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/UKXN22360529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9e9763895aa48b1e7009adb33b84dd0cd2ffe057461a1e89564481f4ae7616. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/UKXN22384890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e1c22651089ffa280dc92239dd33a527a26c41651952a4796e85faf2d7186f. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/GBMA22308995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dfed496afa6973282722462b3e84f8c3dac4a66693cbb4618f1c502d21e688. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GBLFP2406511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6543d1a206f5109335302d2e32273fde30c053c52274246cddf1d5084cf3d92c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBLFP2411119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5626d282e2ddf8b237c9b5161e0bf273dbe1e371daaa596d9dbcbb3487478fa. 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/GBLFP2471490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed7bfaefb0dba909ac95964995887dc0ecb0f9b72b8c5d31ae3d0794d8faf45. 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/UKXN22418617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf883a0e98f7cea88847bcc9c4cf0a516fdfa8589e91392f6dc8dda3f1d1144a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GBMA22412237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312e9c33253a34f3811c911a51800f9789c1800ed3492eb2e638c7a472ecfa58. 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/GX53U2402118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18726c4715814cb505bfaddeaf19c1e3f8ff6ef1abfcad2e39b5e459a83160b1. 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/GX53U2498495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d79163112aa5323e62675666dd5c082f6bdf50576c18e41344ea0a572468cf8. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GXF9Q2411436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3f497b27adca1b8c49659d2aaab37302c93b19c8f82484f18c6844a3fa90e9. 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/GXF9Q2461170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d28edc10f012c1a5fd2398c498560a80b9794cd2bdfcdb0eefd5b6116bea524. 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/GXF9Q2461172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704923ceac81e8a7cf67c575b3a1b773cddf121d374fd04f027a646c38057ab5. 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/GXF9Q2478620.
You're Doomed to Hear It Once from the Devil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085e5bae058c4d0e27c36f529a480275afe0e36e8366d3e138cf28c113247980. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/UKXN22573866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca3721d6c60b944002c7b564b4c271c543f8d6422e23ffc42ad3cd4ce59b949. 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/GX3Q92508574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c821f993165c88de1185d44f8076235886a6af62fb3721b42177074d7c89900. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBLFP2501870.
Did You Really Think That I'd Forsake You?
Is There Something Supernatural Fucking with You?