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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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792ae34b9900a1ebbf1ce3713ef7c87e191596af921d475f6da7843baeeb3bf3. 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/8cb04a48-9637-4794-b06b-bde95a79f8dd.json and https://artists.proofprofile.net/proofs/artist/8cb04a48-9637-4794-b06b-bde95a79f8dd.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 0x7a2211aaa709ec981a586322861c31727b684bc80e71b25233150cf987fbf068. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1740114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091e3dfbe9b861cace618a4caa39103711142345f375f53e1767975e27a1e075. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P1817706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb121c13da4ec2f5b77fab859fbbe37c02df67e3ec52ea5425cc4e1e299382ad2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USA2P1817707.
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 0xa764a083647edad9528ad22230680fc78e0a5de060f6636b647f68c923ad4ed8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P1620733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b8b8740957a0f97f5b5d46f3af50f97ca2010a00a9e8b41111292771c75b1e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USA2P0502570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f254105386acba5f2ff7ffa759d0c8732b8371e36227381db9413f20d1f911b. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USA2P0502575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97f2b453b573a9414c20d2204fcf394914673958ebed170e0abcd04c9b9e904. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P0502571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cdfb800ad8be16e7c9c1103a4ba918832bd51f2f5215432a4e9a64551ff5a0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA2P0502572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cb199401fb1c177c7504dc786efcb435c389a7971916351b6a2c2346758ea7. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/USA2P0502573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3884a8e86c85193f9a9603f15286c4b17204e80af2355976f4ae8bc516aed9. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USA2P0502574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9094b3a529ee2d6c5a97c08ffead3f9ed63c0ba37fab27432367ae3ad0c616e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USA2P0502576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c8fb8a203d1a7dba008a85f3f0b00b1f440a98c0461afdbf44e9e7f4988629. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA2P0502577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2643050572fa1f20975c20ba1c4cadf86353a883e88d3878eff8e504068ee7. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USA2P0502578.
Clear Test Signal (Artifex Remix - Nova Tribute)
Clear Test Signal - Artifex Remix - Nova Tribute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fab2945a0f6403e8dffc31498c9f2524ce88e8c56dd0340807b2ad020d1c30. 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/UKU932321378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610b57de6476e70bcb1767c8136017ad9b01dbc215095458ba84f747e2676177. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKR6V2380422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a2de7560fb0864d1c18ec0c37a1d9a0eb92c7eb3e466395c97cbb8234b736c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKR6V2270554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89945f57f32ccd302499abb3ba99c75dacf1a1991253f8589da399acffcca2ed. 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/USA2P1187070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5171b2b41683d84bda5656576e28d010a14920c0e48dc8b7acb9f19525fed88. 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/UKR6V2280163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5aa06f9f1373f5ba6ebfebbb2c53ef10bac38dac616cbdf54d3d52bbefb60a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UKR6V2280164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fee7a1a5b50eb38dd237bc8c8c517b9af777b2326be0dbfda259776fc4e033. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UKR6V2280165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce55f24ba67ee1f7da5b20c0cea9131f985fb265d0a9a266e3badf03bbd4a8c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/UKR6V2280166.
Anything & Everything (Infected Mushroom Remix)
Anything & Everything - Infected Mushroom Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c60836c87476172bb9896a46e18ced75ee93c96a35f5edc13e7462b8f7fd66b. 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/DKZVA2000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd675ef72f3b9bf64d3e9bae4b0b0448d27c4b7cb1d0d37c7a6063c476314c49e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1970484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebc1b72fdda7bd569df53eec04f7524f120b1db697122eeae01c9f78636b017. 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/UKACT1941704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1664eaf314d8512a377d7bff3519a1a99be0d7c8fb4dccb198e8f3ef431136af. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/UKACT1941703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7a64140089bb54a6a5cc0dcd488ceb4923cdb70b3264b39719e896b62aac1f. 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/UKACT1843849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239c0e9bd861dab3e65426f3dca60e8bb76bf74896a81c492a1c82c77ff473db. 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/USA2P1661820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9173acb32e44c3f9b365bb93bbd219ec807cac1b5523e2ae3df247a8bd97292. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USQY51430347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef7c709a6fe92620c237859a339ad0c597502e8c9b9dcc2cbcf6efbabdb2de2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P1303917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d696d4f40c59184d4608cfd5ba0a857bb116fe04b9f876891e2d482d19dd150. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USA2P1303918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097b07872ecab1dd583dd60d22cfedf220d055dda82527dd5f8831e257ba4994. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USQY51246698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e08b30cba5251a5c2ea999488d70420c95eb9ecaefbd5e572dba193f15c867. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USQY51246700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0c749b5f51c974b89a40ace32015cfc72e30048258df0f54f3fd0b33c9097a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USQY51246699.