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 0x5f136d7c02a37c378daf7fbefded3954f93ec72fa890713a50d4589748dd0868. 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/e335df5f-760b-45be-8fd9-20d2930a3995.json and https://artists.proofprofile.net/proofs/artist/e335df5f-760b-45be-8fd9-20d2930a3995.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 0x0b800b4affec61cb07178f82f962175cb5362a07b07a511cb9f0919534318f5d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QM42K1752612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405571f92718b1b139d3c32f02ecff80f0583d7fd44229ce3fec9f44bc989928. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM42K1828341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44615d6b4b497a434555810878acc23aa31deb9dfa584ae41da64de92987dc79. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM42K1841352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9863b166e4ae7ecab85b8d0c25604bd31b143825bb813e6d9b2e1d5d766187fc. 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/QM42K1848099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4833992437986eb9e4370e7007cf8e969dcb5166b0851ba5788f89ce7b528a2a. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:05:39Z), 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/QM42K1859799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8ff09902fe5f0070d8644cca75c8a6bb26fb346b763609e1942999bc475132. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:22:46Z), 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/QM42K1961051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc376a595faa860a9e3c96762d31f08699e67256ddb713f4cecdd9e2bacca176d. 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/QM42K1995096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23b401e8030f67438cfc4622634166bd4b085867bdf7697b6cbb7c3707c5801. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:36:57Z), 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/QM42K1984259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7706fe2b8dcd6de324c202e92cc4c93c44cf092dffab7ce8406281227bcd74cd. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QM42K1918750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f6a2b321765b8f1e0c99876a970005d90800bc7635f91e6c9d2e4cf7f63343. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM42K1902521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e69e4d017df48cee0c4cf0d1c620ba87c0374a182bdf91fd6cb0409a42ea1a. 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/QM42K1992581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddc11b2c9f58e6469cc3fc1938c51c135e2b151b62bd23b619f89dace021929. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:51:55Z), 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/QM42K1977834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d939f771cede7937650824f3c5ef6612e5a5ee6eb912397e6bf8b94e5c3ffc9. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:55:02Z), 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/QM42K1927554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf652055d8cbb1290095e4a1803ac11dabfcca457b4eb6ffff40a8c0a8310912e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZS632151272.
gamestaR euRo Ю ○三 ＼(￣^￣＼) [><> version special]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba506d0f7b4d2299a863effcac731704c217ff9b42a51ea2b8eff2a74782a017. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDA62590625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b5581e31fd9a2500493546f0abfdbb3a032617547762ffe767d4e7ff98d590. 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/QZK6L2557984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe349cf377eab72639dafadd53e8051e53ba6dffa5da99527750d43d47379477. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZK6L2557985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd92635642afd7e8d19c956f264c3ac60239ad2bd0caa2112e449def624f4989. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZK6L2557986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2790eeae8a32e59e4a8489294ff3d9e73aca73f3b0c04d92dcf0fc88ad47463. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6L2557987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff37b023925a18a85627905f2a8cb17a1abf6d32287d7dc42214223e99606464. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZK6L2557988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f35ab70b96f0d7a0b7224e2e73bdcbc339f10542b1ec304a56fff43739c6bdc. 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/QZK6L2557989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dd909a1fe5eb271795b33d55fd0f098d7c035bbd4046c65c64f10bd136be91. 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/QZKDK2506383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a70264993c235a7bbae30e32ba8b650128cf6d90347f3ab8e08e08639fafa8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZKDK2560680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0803398e6d5fcc5759d2b237f9782a44feb14eb054eb8d25313ac46fbf5c3f78. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZJRB2538932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa5ce7550b8b53e9290987f54de9eb37c33e0cba189885edcab9f1e9eb912f3. 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/QZS672555943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090bb57f7c1ad5d1dc2a62182eef739b98ec218881b5d929d57f7ee2d3e3ba5a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:29:26Z), 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/QZS662583694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f3c1aabe365322f73ab6ea885ca3dabc46937151e2782a24d117944df7e7f3. 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/QZS652501106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8375d0f847a8274c8fc88382128347665da079091f5c400f4b902a968b5f75. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZKDK2542243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc1646fa8465d0489127741de6e10e7686bb71ca624d5347bb8a467eac0fe17. 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/QZKDK2527726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa207bcadd603fecb885f08c304d7a919473f9d8e7dfe844df65e0ce5cf5978d0. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:54:30Z), 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/QZHN72353029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dccbe2e627df2ac0c6785f9d018a4583bc8b14ac863ac051df593b51118553. 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/QZHN72319770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0df173d771634b2e315e2cc00907fcdf38fc68e836d132fd2f8cad5fa9e725. 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/USZ4V2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4cc900242950e883807bc08f0e4eefcc875e92ad14ae60805c572f73e96b88. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZFZ42478179.
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 0x7d428f69c79cb9b21bdae98d10ff28f4ae7592b64cc95c004b09c8df557cbe54. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZHN72353027.
Duck Unlimited (feat. Bear1Boss and Nolanberollin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae9580fd54dbd705d1daba82837dc89a7604a3f5e90c6fbd9b8656395e41b79. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZVM32200067.