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 0x7154a02430c005969757471c983157c05194b29459cec812e52e15887f77813c. 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/e393ed5c-61c7-47e4-8f25-89289d0ff7f1.json and https://artists.proofprofile.net/proofs/artist/e393ed5c-61c7-47e4-8f25-89289d0ff7f1.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 0x6955df05765402887090b5b806d0d3422e6e7491fc150b12222deec9359cd3b7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:00:59Z), 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/FR59R2104466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400c18dc51898301e9cd363540cf24604c6a95307b0e7d7f4783af798ac459a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:01:19Z), 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/FR59R2106876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ebda26547634beb5dded23518b5c72351801675b1adae8371c16ac2f1a55fb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR59R2116502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484f0ebf64e63d9ad52e0381618fc6662991a0fed4879fea5f47a3502fd9858a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FR59R2107016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe20ab41443c0c2dd7f3b07a43581b13cca582ee8d08558ce35a9c33f7aa0aca. 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/FR59R2108644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b501ad8f2294785e9d8d7e246f144acfb4f6bff9434e5b1ee5a6fbe58ab02ca. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/FR59R2108118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63439227b4e45f76677ed6453f967578307ef3f41c670f9f4c5c5abad57e1b61. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FR2X42149090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe8b6a9e58b92f0cf41399fea81af77555c745f839353a42e2420de0ccc1898. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUA1D2134646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a24186cc46be303fa670a914550f071f043a0c8d0146e014af6beefa8e74398. 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/GBWUL2125283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8796d9747cbe0b6eddd3d2e45fcd8ce2a5e92ce5a3cf86e2e3e0bf1ed4f0c533. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/USLZJ2230704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628d398e9191f295f12cd634ef65ca92f883f717fc7f8ac59f7fc54b90ff20c2. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/RUAGT2204403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a2537d486f5e8ec548ba7020672c86632957961fd009e1ec9b5e8bde869776. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/RUA1D2320847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c63e5fa1392e0fa97cd0e6fc62f4e2b5ff867791884affe1e2cb27697b59dfc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/RUA1D2366687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea279161c4a2cff708876b14afb58b14bedad3e5a87394115878dd52a6fb857. 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/RUAGT2325851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3a405aad0fd7a09afd311cb6ad95bb7c9803c0817b7434ce640915cbea09f5. 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/QZK6F2416042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda70d3b9053f2b463c93c251f987ed0ebab23a36437c1c0a14a7717516800142. 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/QZTBA2482582.
Touch! Узрите! Мой Touch лучше! Нет, бро, его Touch лучше. Что?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1183ffec12098d932d035f8cc0c946707b81c6b83d35b724994f3e04cccb9e6. 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/RUAGT2544173.