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 0x91a05674c55ddc4a13ea25552b7ab4355d7e7e1f2e01c512f07a96b1c8414e12. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbc754a0-6265-4e5f-9bb9-8bbe761bfc6b.json and https://artists.proofprofile.net/proofs/artist/cbc754a0-6265-4e5f-9bb9-8bbe761bfc6b.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 0xbe9713a6ac036e68c79d481ebd4719e3b3a976bc427b8ebf5767640aac5402cd. 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/JPR501204790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8806d8db93494b1de760603c22d299dc8a682af3ac81f7cd2207f9600a4ead2. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/JPR501204782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d2ec45fbf34a788136145359537861233fa90591447238f500e73e6c48e20. 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/JPR501306298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc100e6068d2d3bae8bdbf7fe04b658c3f9495204c2f34a03f1887d8728bf20a8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:11Z), 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/JPR501306300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fdf82e2da083a68b4f3c76e2523a54391fbe0f0ccc1a3f635ab15edb4c4670. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/JPR501306301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9021551e84e168ec3ef89a6e759b2b84a9f4330d01644cf544b00c3062b03170. 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/JPR501409762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59c676286c67b52169d87f84bcc9dd2b125b919a0fc5da2b43bc57e5b82a637. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPR501409767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8049b4f700175c09020b8e9b4f825cf8a6c8cc583bcb23dd134b8f24799b775. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPR501512067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03b7095aca9e6cac6cc80eb037ff7325458bfc3e9652763bf4a0755fb42dcfe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPT671400347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ac684f206b033ff9d5a1b0ef64e008c465149c48f45b8c3ce9d27ca77d4317. 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/JPT671400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2adc100b1608f2983e6b86d2566dbe6ba43c2d10398da08609df8f481217dc8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPT671400506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9385cf0f05bd656143ea2267fd95a76ff6994983194400aa221056a68a5af660. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPT671400244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52b75363d4e6af050ee12a86d5bd946f0c76f38d8473c852c0c67bd8b1ad189. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/JPT671400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa607e1bf8137a6b962c283f3e45c9b1370864d20004b12f6fea86e0a131f44ec. 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/JPT671400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba1e07ce3ce3ebacac157a9f71e96dc2412195338c850ce5e238f07686fa0eb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPT671400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75ce1d8374f2d451ed19b109da61d719350f95ab79e60a877047759e7509481. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPT671400522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e748b5922a31e44087984439db76836fbc4357977a9676d95b59ccede9037d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPT671400613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e35e5887d42aaaa2e882b21eb9893a8a411b55b917dd474b6e1d1df4140a7f. 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/JPT671400629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76ee06e26da2bb49ce71515319e489cbba354ffe2efbff2ea76792f4d0ffade. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPT671400690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fe8a65aa8cc8ae63268f4d2c7b7933b6f6320fda55c7fba209f48cd1976a12. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:43:47Z), 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/JPT671400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e7862805bb274c6959aa9e80bd94f8a867b14fd28b458c19b797f0565b7e92. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPT672100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d921f3911f00857a7bdb912bba9a4209c100ad6ee681da66ca4a5ace5daf274. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPT672200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ad8a79fd575a3f5455d277dcd22ccb43f3173582758e83f0f625b6ebe9479b. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/JPT672200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bee82ff8904037b46c854f1516f6420eb74026d0cd2cb05db59e739c9fb51c5. 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/JPT672200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5694b83c36b9211aead7b321f38bc4d74aee087377b71ce3bf82ee123221ae3d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPT672200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd5cf752f4de632d359e38b1de4c1728c08cb7171a5c9b2e08cd3d7445a810a. 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/JPT672100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f58c54a1c491ef81d36dc487f729042e6ff71bbc296d132b8d40ba893c1056d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:30:50Z), 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/JPT672300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d95bb24ac6e4db619e4d82ed8e4bd7aebd4eadc74f80ee202bbf2016f8bd9ca. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPT672300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f80027f6e4bde27838f30b721e1940b3b50140a15b65e4cbf34451ec52f03b. 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/JPT671400727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2131c6314053b021474522cde0a7d3552e28ff6a4629b68832ab8c02f5a498. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPT672400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbad12361f0a59bcdd570551107f5ef09467a63c30c3d51f020f55b136b205f. 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/JPT672400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efd776a25e88a37e0435fa5aca46fe08e5d4bf1a8600c4475e110f0f589fff0. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/JPT672400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fe26a6dbd7f072ce109267033319096ef09bad675834ca72274aaf47ebeb33. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/JPT672400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35c987b4809da3f9c7edf83a8e033b07aaca7a44ea176cd9392432fe9c6f9b4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:31Z), 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/JPT672400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f1606ee07a50bf01b613f59cd209b42a81c2df97d270bf490d4ea4e1fd84a4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPT672400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f541df1a2a094869e0ac8978ee989b2966c901d910801011972d98c40e68142. 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/JPT672400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9725000a0ce38e047735a9fa9b7185befebc5970db776918c7c7fc8f32273b17. 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/JPT672400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ee44eecea02788684e65496ef0379285f817d3828afb31a2fe24b33970de03. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPT672400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ec9e79756f63bf53c812eb7776c47d661c3f12a6ca00997228a802332df690. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPT672500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b9e354c9beb4c2a016cdba0f846e7ff0162482cbaa2b0edc31e000cd1c0e44. 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/JPT672500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65210682b6b90c73bd4d3abc324aeeb1e2c81797465c469113641536a258ad77. 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/JPT672500034.