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 0xc705da1d5efeef479c2c3bfecddeb03ccb7bdbfdce3ffd2e8f1bc49873fa7b37. 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/a89c5fad-6c83-48e0-9062-f6db68f91a6c.json and https://artists.proofprofile.net/proofs/artist/a89c5fad-6c83-48e0-9062-f6db68f91a6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Melancholy Trill Mage Against the Machine
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 0x26d8226bfe2e7724ea8ec9b597d6a5286c767db8cca3404bd4093847a4bbcdd4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1449970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac1503eb13932eb34b30622f3acb36d22ae7a75ec5c2b914c8448bd514ea7be. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USUYG1700742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0253393657661bebf8fa04dbb5c43e7b977182a006d04dc294c27f846c42e1. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:12Z), 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/USUYG1700739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f7a3af93b50a3813031f796874b11978306c303177f86112ec330c20dd0995. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USUYG1700745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3298eb374bbd84a66da494572b5a94e05832a12c42d34529dbbc5287dc0456f. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:20:07Z), 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/USUYG1700746.
Blind Driver (feat. ShrapKnel, Curly Castro & PremRock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcaa9c58cebf25c79f0157d54157cfe8dd1ec58c2923de5f5f1b2c8467499f1. 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/USUYG1700747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd5fe4e3f65749dbe89635ad7c9867629857cb039c9739a43a445b1f431f012. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:42:29Z), 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/USUYG1700750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd644df4ba114196fdcaddfb4706940845a100a49f90c37dba919f0e21af1755d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USUYG1700752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d9977fddff629dbe3065d01975577ac25ebdefa2d43fcb46ec2be3ce68d482. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/USUYG1730961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374ee76f95a260acc3cee7ff3e6bbdc8cc7d66cc3e8307064e38b9de15c98ca. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USUYG1733423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e6f744a11d84e2bb9f99e42504d0fd4ec26e1381b5636c2954bc8c299031af. 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/USUYG1734496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a09e1b45c254e8ac3d407c6e18bb3d0af645857ec4b9d04ca7905d90e236293. 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/USUYG1734497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d9977fddff629dbe3065d01975577ac25ebdefa2d43fcb46ec2be3ce68d482. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:10:37Z), 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/USUYG1730961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4e756a38e95106496c30f06c4b9e464a635877dc0603f2fec43f20db13a71a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USUYG1734498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ae19ca9dc5507175b27aa76c053c6fa181ef454517cc5b9c018f1941faaef1. 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/USUYG1734500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5542f56835c3176bfd14897889a0808d480b4172aecf1f0e1ebe8eaeb0906184. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USUYG1734501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f5d59e1e8cc034b98ca8570e0c1c29ef89558bc711c9bfbd003c28755272f5. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/DGA072515927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79df60c646761022c4a99537f84542c73d7319a362d35fc16aaa002c9c4dce0. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:09:59Z), 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/DGA072515928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6483e81bc2089c2e0acc97708c53570780abb4c0c1300f806ac7726a9b6689. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/DGA072515929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee868594ccd0fbd25bdd2c60f69f2af54f796a465afc769eab77b920e11da8c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:17:54Z), 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/DGA072515931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57e1571dea470e65d327cf72df393e8e4c99638569ea643a6d0958b4335b087. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTBC2474040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227158087ccee984844d925e1707aae7f27d60b86d0c26dc72f4d751368dd620. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX3Q92507238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024630c705d4c56b61278ac533f5277b0389a62d6367cb9d86a2c9d1090f9f6b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDA42547466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c46ec19e16cfa7578a496248cc9cf0567abaa4d783367b3ccade44cddfa90a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZES82428243.
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