1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb9ed07cac39f36fb8097999d8a80e1a104afc7e61c2123375adca4a6c6195094. 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/11ce219d-4fd3-4c32-a590-b42259402971.json and https://artists.proofprofile.net/proofs/artist/11ce219d-4fd3-4c32-a590-b42259402971.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 → block OTSBitcoinBlock must exist at that height 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 0xc058d98393dae6b7bd3052c1f8aa66e8574a70d83c667d6dc8e2a03e1a5cc33c. 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/JPB600499003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b2a9180b3021bcd7e8b249171d26d19141efe1fd27436467633a23e3150e35. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:36:03Z), 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/JPB600343803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dbf42504a2667a406a93c5c49a955785212be8057e20871127f93743605146. 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/JPB600637103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dd1b6a756e9c2a028fba8c9c7ea29d53ec7eb5031542eb31e4769394c1ed5c. 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/JPB600273403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdb087e30bdd384dc7effde3195459f3315835e4bbc9f4c4a66120e8f55abfa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPB600359204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80c4e797f07e4849ce74e53dc044cf0516a2540143320c165bbec53f64c88aa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPB600359205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cbca792a9253091822434547dd31386b9f6de12097ab3ef10358fbe0997913. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPB600359206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf823797f135f68fee49aefc0c9a0171690e6a37762158a0361660f9b1e547eef. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPB600359207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47d6bbe16c9d4d5d0cbc9fa87c02f6c1bb3aee29ad3f0a9bedb6e649a79f3d6. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:14:27Z), 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/JPB600530501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357b64b11c722b16a2659be93b9c2ba60f5e3803ca6bccb9ac8c7c51e74ae3ef. 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/JPB600464002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0a4a1a975545d50804f9ed44465caf5cc2d07fbb6d94faf1ffe02533cf2e92. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:11:57Z), 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/JPB600581001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010fc8824a740069923317bbb90787dddc4f21e93db9546bfdbabfa7c835da63. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPB600581002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffccb69c0a9c4946636b187b63996f1c0a1657bfa4257a75e1354c9082ab0ac. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPB600581003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bad0979bdd7069e0de035f848765e73c97e094299a5eea4688a1ad8ce04af7. 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/JPB600618102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d92408969ce8a3b7ee223d3caefac861091a66a56cadc60e4b0736ff8453388. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPB600499001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b763548116715b9f83632d0670c4a2b05541f9ef8fa79ac7f59b76b847f028d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPB600618101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26ed50fba4473265dc98488760c5afd2b9fe9c866780390c3c1bf683c9ad684. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPB600547201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d2672356b1c54d31b671bbb2393bfadcc8c6307fb80a658a07db765ccb1542. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPB600732314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee41f0ed9d3a5bce9578455dfc3dee8cd4287da1c5c6acfefa0134306aa061e2. 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/JPB600732319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff40fa08d4c9de339f2e85daed1387705cf65b4003dc94646f5db1c2284e26c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/JPB600667203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555ef15d69a9321ba0053a2a7570efd9e5d865098786b4b157996677e9336e68. 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/JPB600667202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301a47e79b1fb02721e6352e44aec425b5c1e5eaf37a929b54a3ff3a29534821. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPB601235902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580578af8f05ca4a9cd9030a7bd8c24e5c436ed3b43945d45e96c444e28029ab. 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/JPB600637101.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06368e69b34845a58f661f62a5762da89a93e2924040ca819fde565df7e71b07. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB600464001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd33c4705e56f3443eb894de6d0da608c166da0aba2498277d20530322ffca8f. 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/JPB601902984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580578af8f05ca4a9cd9030a7bd8c24e5c436ed3b43945d45e96c444e28029ab. 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/JPB600637101.