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 0xe07847860ba74fa5db5b494f3de7a08d749705e0d0a6ff0149c325d7fbc00655. 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/8ef2d376-c68f-44d9-887c-b808ce4df760.json and https://artists.proofprofile.net/proofs/artist/8ef2d376-c68f-44d9-887c-b808ce4df760.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 0xcb0864281e9d1ee8d96960be1dc58d49d1d10953fa6527b533b380131fc94d82. 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/TCADW1868176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd7a8978f8cba855741aa80b9c7b9e60c2ccbe8e2966f07f962412a43f5902e. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCADW1868177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650190c247ca1cbe3d85c830544d5009c0d29b40d4b44d77b510441b269df304. 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/TCADW1868190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b8a5fc5ae2daf1dfbc851de37c272f0a39fa8910ab0edafaf3404919432ffa. 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/FRZ041900844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27911294e705369d436db31efb033b098aa1ff37b95b0cc831858fc95fe08a1f. 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/FRZ041901178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65f0604fa76ecdc9895cc320616ff5e989db6b76078bd80f2731ca3311d5baf. 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/FRZ041901689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9276de282aa476d519285064744912761f0c484a51f50f478c222a83bcf01cef. 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/FRZ041901691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d44142db4517945a8b83164012cba30d36a36aab96c9a68aa069e75a8fddabd. 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/FRZ041901692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324e9a0c772b0928800c74dc5cb6840aedd1da87803af3ce20d4976eb145d39e. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/FRZ041901694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54a4fffb3a89875717cfaa96f1f7b16a6b2953c19db164eec5dc1d736ff88a7. 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/FRZ041901695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c5395d6f9c76fce4392185d658ab36fb3ac713a008f3f521da1c410d4da7a2. 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/FRZ041901696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3eb29f34dc558fdc4073ca3044540419127022dd42b11217ab278276ef3d86d. 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/FRZ041901697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c56b997a4c9b5c62234b3d01c6de005daeeb47e3da6c6c225c3a25d45062fc8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:51:23Z), 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/FRZ041901698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a1d82e53e726bf11a190af4ec45e4e22a6b53ed69b88bb38157fd7dee91a15. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRZ041901699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd29b6fef049255c88b443c747e7a2dfd547997c4a80084d554ca35088372d6. 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/FRZ041901307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed3999cf6339dd1fe915c685431ee8fef4a4a19ae16fbb1db5430330acf239a. 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/FRZ041901704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5316a70b33aa8c2b97361f7b5d1c61bdb53cae5df727c1abcf65d345fc1f7eae. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRZ041901705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65f0604fa76ecdc9895cc320616ff5e989db6b76078bd80f2731ca3311d5baf. 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/FRZ041901689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9276de282aa476d519285064744912761f0c484a51f50f478c222a83bcf01cef. 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/FRZ041901691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d44142db4517945a8b83164012cba30d36a36aab96c9a68aa069e75a8fddabd. 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/FRZ041901692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14d1cd2025ab3ec0572a7bb17030f57605847386dd9de988ec4ae3783667006. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:03:48Z), 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/FRZ041901693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c5395d6f9c76fce4392185d658ab36fb3ac713a008f3f521da1c410d4da7a2. 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/FRZ041901696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3eb29f34dc558fdc4073ca3044540419127022dd42b11217ab278276ef3d86d. 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/FRZ041901697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a1d82e53e726bf11a190af4ec45e4e22a6b53ed69b88bb38157fd7dee91a15. 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/FRZ041901699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a4bb6a9ad92d0be11b0528f159041099017bfcdd24ebf84a94d62bdadbc4a9. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:43:25Z), 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/FRZ041901701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9c4eb03e663ee41bbe28fa0ed452c140ed8579cdd147372e31b173f8371f7f. 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/FRZ041901703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed3999cf6339dd1fe915c685431ee8fef4a4a19ae16fbb1db5430330acf239a. 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/FRZ041901704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ceeb2941c458724d8ed5250edc877a5d3301a6f0ca9f92dcf973e7016a7a7d4. 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/FRZ041901906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2655cd8f34406cb65a029482675cfdc74dd8992ffc5f259fbf35296a4b277e5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:10:04Z), 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/FRZ042000796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd915f8e54e3913d450da75d151ed626fa4cb8c3c7d3746a696dee614a8fc19e. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/FRZ042100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167bbd4fe256ac820bc24278a534f5fb8c081ba9c422b8e740332d9f6f1e4f94. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:47:27Z), 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/FRZ042100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d1f7024cd8d059efdef77a7a7f3e62934dfe73bb9dae12bb4bf28f5199c2c0. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/FRZ042100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99477f8e87b411c0bd88b89269b3bfa8bb99b028a102268bc62b42b4bb9d0c8. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/FRZ042100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ea4ec3c43a38d6f64cef6e8566fcdc2530c94e0398b8a48fc4b7cb4a2b2c0d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRZ042100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bebf8c65a583329b4ec65194f3385013d76b86a6015eead55b2f0f787526057. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:46:56Z), 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/FRZ042100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668b4628249b59d5c208c228a2cabca43dec92200ea3bf4a52e5f7696393cf49. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FRZ042100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdff439479842546a101925e12f6f3a299115d1d9fe6881aaab908b8da74fe0b. 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/FRZ042100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db1e45acf59db43f135b2307161e0af6f0f5a6d5cdaa02c60997b1551b22aa8. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRZ042100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57cf9912c528c718d3c8f8eaff68a1b75d9652bad1b285859dbd0069c5efd59. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FRZ042100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79b970d08cf0b46d7901a685d5fe182be2bfa646e152809df7c898ba2297f23. 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/FRZ042100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b7b90f728fbf25251e213072176c5483e1371deb159456c58844c3c7daa7da. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:00:25Z), 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/FRZ042100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697c48cdba1646dbd3fd8d2752b2defd48646e3a23f0532038bbbbd7da079b8e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRZ042100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453c824fb70f166b46417bca26e838e77c71e6b80fd5b3f1e6eff9b66a347551. 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/FRZ042100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807999afc80d0e167c3a8169b06d4d37d7c2ed0ce59ea0a012b87d9aa89081cb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:33Z), 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/FRZ042100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd6d453a11ad456e8e02f8518fa264db47d462704d1338b1f216ef89e43b162. 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/FRZ042200503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ff0f08bea1f6e7de0d4f6076c407ed98030ca725426fa70935dadbe8b8e8e0. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:10:07Z), 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/FRZ042200898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eccfdb99bd768c321dfe1027119ca5581a134f9db72524410039ad919b4031. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/FRZ042200900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e807e14a58ca95446d162871a0fb08c0802e1dbf79e95b85bb9bf356dddb77. 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/FRZ042200903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b8efe8cf16fbbaa96797e6d7c6231f3f26f8b5de21b74e675b2a7ac836833f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FRZ042200908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef257ea8ce87583b668f79fba9508119018789f734876efb0d6cfaf677605c1. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FRZ042200849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beab243eea89013801cba20f292e58b1a017fb24a630b29b6abb25f197585f3. 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/FRZ042200899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70299453f6cb66d8836a9efacf22500604f1af52c7af2e57717a77ac8c85b770. 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/FRZ042200909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe701ebfc4068248921516bab163e497d92b13cdc9c643b0429971c4a07bf2e5a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/FRZ042200905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913593c712db6a9946e211f5645b6a709536b2d2b04490199653928e04aadf81. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FRZ042200897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ff0f08bea1f6e7de0d4f6076c407ed98030ca725426fa70935dadbe8b8e8e0. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/FRZ042200898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcd86973424199d5a0d7a2cfa5acadc0c5c7996aeacfa6244a9422cbcef48eb. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/FRZ042200911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c62d482b767dab3f5506f47867247e4473b564b65549f02427453db8789f4f. 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/FRZ042200901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6c99f4f9744a18f5b4b9c1191f5ffeb87a537df1a991b09169d390e267e64b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRZ042200902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b495f8d41042fce5a30f094d9194f2d879a3553452fbf2710aaca1b458a652. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:43:16Z), 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/FRZ042200904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132f863485ea8f5a5f333d69de8b14fbac9a2c095d0b47a7e323da1a1e3b7725. 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/DGA0Q2430381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b10a8c195ca00a1b8fac5a284802092a25b9b7c452026cd5d4f59b89ee7ad7. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/DGA0R2410482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb2efec5e5cca50d509d9cc2feb81bcae66699879bd6cc173ead51fd7c9db0a. 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/FR9W12214376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528118d081e65f8be5c33040b1bf9ffbe8ceae7a515c0557088110d55deae506. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRZ042001208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8f5e77753cc24c9b689120fa410086a5fd2bec154b0279132898ad04c9a439. 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/FRX202227100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8f5e77753cc24c9b689120fa410086a5fd2bec154b0279132898ad04c9a439. 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/FRX202227100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8f5e77753cc24c9b689120fa410086a5fd2bec154b0279132898ad04c9a439. 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/FRX202227100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ba2cbd6977dc82e0364a7c812a42baf146ff81c53099cd9b0b37fd36d5dbc4. 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/FRX762125256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5476ce575ae89b4ec9f70e25dd0c10aa83ebef8add07366b2bbba05fcc7ff4d0. 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/FR9EI2000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5476ce575ae89b4ec9f70e25dd0c10aa83ebef8add07366b2bbba05fcc7ff4d0. 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/FR9EI2000270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e590f2a54624fae1daf9e29ec573b8dbcea750e8604723e36ec987f15f6e274. 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/FR9W12107997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e590f2a54624fae1daf9e29ec573b8dbcea750e8604723e36ec987f15f6e274. 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/FR9W12107997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e590f2a54624fae1daf9e29ec573b8dbcea750e8604723e36ec987f15f6e274. 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/FR9W12107997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e47c948d50e7e087e9979f641087cd299c58527b0833711d9db47eacc8679a3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR9W12136540.
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