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 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 0x0d0e4aea3f7199f259ec2f10f3dd301a7b0a3b50b3f896a30d55dbb151aeeae8. 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/850a7db1-197c-43fb-b98c-bce3cfbec178.json and https://artists.proofprofile.net/proofs/artist/850a7db1-197c-43fb-b98c-bce3cfbec178.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 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 0x309ba6ba70fd4acb4439709dce57708958994f95407c8cd96bf29df2c92e2492. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USDY41833771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5621fb97762372e3d6117a6140690c2738ba192b28394de700ac03a6e828cb97. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USDY41833772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a15eda88fa6b4b36b6447d60508b951ff72e61655d29820a35ebfb1468b0061. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USHM81845729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dadd31e2a8119322dbc0c7f32f307972bcefe7da3f544524ada05f45453bb5. 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/USHM81845732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e00b745aec3cba486c77b5daf42d8006dc989c0a05c5295bbaf30249f877e89. 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/USHM81845735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31030fc83d16972d10e100fdf9d4d270899abf0ba0433bc0e99b1fc18914a08f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USHM81884110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafd77140d2dc380b8bc02fccca278dc1f1113b498293895d53af16507c1da2c. 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/USHM81884111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1b8c1397f6a304eb78cb721952f44ee0359c2ad394a41958b768aef199a0a8. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USHM81884113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc863178b77138b84094b4ce7a23c77a4304cb37ba041ed6c01cc3406237e90c0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USCGH1830309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9494f27ad9dfdf5f76b39b3036b02dabb3cce4edc986d802688469d6ceeafe. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USCGH1830310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7eb154539ab22af817f1c8623a0cbae90d2281d47180ced4e666b27e4812bf. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USCGH1830312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f590163fb503e81ec09f619fac73fad001b49985d74f590c8f652ef9a89cc9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USEPP0610101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62efe2dcf1b6b383555305f6aed11d03701227ed2293a6512175f15cb1953176. 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/USEPP0610102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0280caad8d7c1e9c960564d3de15a391e8e86fd2b4fcdba9901b9ab2ac6246da. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USEPP0610104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e0901d728e90fd7047922b3aaf846f685e0cc327304bf7104302887025a35c. 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/USEPP0610106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aecb7ae9a12dd6b0faeb75d64991f3ffe66dc52323581fa5d5fdeddb3903ec9. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USEPP0610107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d21d0cc3fb7cdcba421944a0350161202acc041ecd8ccff6c6af0d9cb2ba4d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USEPP0610108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdededccc3859fa55295bded5ed24c4ec71bda8476cce771740d98c74ffd75ec7. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USEPP0610111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87a75aeda624af0c1fbf228b597dc50699fe59036289977cbcf6d0cbcfcb818. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USL4Q1743500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e9803826f7c4463d3601fd2af70d716d73b36d8a9c522b537e5cb1961b794f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USL4Q1743502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d92d7c8a5b20668acc1a646f1982b3406d4b66299ac703891d1727bc45a6dd. 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/USL4Q1743504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867e59c9adddb23d3ec8bc66243d61ac3ee915e6927eb2f8f011e6a912a612a3. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/USL4Q1743508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17263d7de158a61daa0f47cbec757321a094592926baa965912ddf209f63db0. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USL4Q1743509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aca807edd40b982942186f3e583cd5b27d278c2b9cde4d5df7584b7dc6a5c2. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USL4Q1743511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9598ac2f9735767cc935a83f1b481e462330258dabfd0251ea3075cf348556. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USHM91776235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba0e9c74a141aa67b9b18f235b6df015b9a759516d74bb0f9552d26bcba439b. 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/USHM91776239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb1516cc3db02677e0cbf8c4355594f967edc94d9b0045c8b7a0b5342dbc475. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USCGH2105678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c137065cae9f2cf3e3ae0259f68fb859e629a8b9ea019f2962fc877747a9f4d. 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/USCGH2105659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11af1793078f69dc04682b04147f7dd0b6a2455e2dc17e176cc9af9139e4d93d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USDY41893703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb16e6d00aff01116a157de1229c979314ecbc7f549cd24c5d4d5825c1f763a0. 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/QMUCK1250285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffd02d5404fe507a97004fae5227e4dd13ef16ca5169c73d6f8e1f643341f42. 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/USA2P2159697.
Noches Latinas 3 (Salsa, Merengue, Bachata)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1217c83d6f6b413dffe812b5856faf4fd513733d18ea3fcf1cab1f3e08040478. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES7510923128.