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 0xc7813d2cc885469bdc7cf7f8f8096a62129b814cf89f7a380f3f72bf070ed333. 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/f724b515-a9ca-44f5-85ba-3b539330213a.json and https://artists.proofprofile.net/proofs/artist/f724b515-a9ca-44f5-85ba-3b539330213a.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 0xc4f7fb8fd34bbaa1080ab3e0338be973632f7464b3ac8202b66aac6c90e80ac1. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/SE57V2323302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aba39f56b9688a61df081dc79dff5e1073549f02429bf40fdffac58e5d3bcbc. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:44:04Z), 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/SE57V2323308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bbd8aa6c62cff11ba92e7a0ab93333d69e5ec70cca2eedc3d13f3330d49543. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:34:52Z), 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/SE57V2327802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3171894099a4406c7f8f1fc9b4bcb1b17cd7249a61661192445ec7162ddb459d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/SE57V2327803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d53cb471a4b7f585e029686a68277af014d087ff053074fb12bc8d8a1b0c227. 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/AUMEV2397236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e24a9abd5e4bf79b35cfc19e229ccc147fc787788750ef0bdc86281aee05786. 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/SE57V2336706.
If You Feel Lonely,Come And See The Sea With Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e7fe1837f32bd3b3a466111730acfd921fc40f0d352ac049aa7c241bc19c43. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SE57V2357302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7a4f5a51e00cff8c23451e2a835675647f8c7974ff063ca3027119b6d06624. 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/SE57V2357311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99043c581e6c2f77a1500531cc364bccf5e192eb8b55c7ae0c5f90eda7eae158. 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/SE57V2359401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487522203c906e114732f718b4d4a59748c14b563494b9bf9eacd4dbfcb5cb45. 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/SE57V2359404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7952f8dbf7315f60801bca364c1c48641b284b05a9db891d5538dad72d7a4349. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SE57V2359850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8794ec1108b7e346024a3d8d35da26ff34abfd5dcc1c8a2188746762fa0c9f0e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:16:13Z), 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/SE57V2360337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872a5eb5fd515cb0ae9ba9545aed10e5e2ddcbd1a86411a29d15b300c91ca78a. 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/SE57V2400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5392eacc43023943e4526e9d1ad66655d56187a3401b853b07f6c98f3aaa9336. 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/SE57V2400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44791180e8b64af00b1a97e76bb348c72cb98bff01e0258910055165b802964. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SE57V2400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd843b718875dc8a9df1ad936a4d60f93d26f348fab7ca68314499625e1825548. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:51:35Z), 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/SE57V2400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0219b520d7be623bb44886e323c3410215fda095615e80cf50ded32ce7e6c663. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:35:51Z), 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/SE57V2400141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc777d8ad9a283f1bace1a63c0cb4666e0baa8fcb1285e5ae3b75bc8d25805091. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:21:20Z), 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/SE57V2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7d9f8f0b3015a87ab4c00115c7109fa93689650fca9196057f2d1efd33ad7d. 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/SE57V2400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43579b434180218c92c004b1a67f7f53fef2c805fa65f0dcef70df54c266be53. 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/SE57V2400371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9903c1c52b59b44b50a2bb8d980b917aecceb5354a5523d0fc9fbc7b48167f0. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/SE57V2400374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed1bd21ff954d590415ac040431cdad5a81c607fe857a641a91b643f1465fef. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZRP52332302.