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 0x17f43bcf031736b15c2ab415774dd16d4d91581201a494253e934296b5e1007a. 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/93828b73-f3b1-40cb-a07b-e47a0ea4d1f7.json and https://artists.proofprofile.net/proofs/artist/93828b73-f3b1-40cb-a07b-e47a0ea4d1f7.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 0x21a3b585dfdc67cb62f0d2ade21b58abd144fdd53802926b93c037c7993286ad. 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/BXWY82400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc8971740f38a17d1995e432fac7b1dfd6b4cf823ff3c1cccaa6ebedbe647ec. 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/BXWY82400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043b8b3ceb448940f7c51ef50841fef697029cdd749051b3f1a21e1dcd13ba55. 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/BXWY82400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08946578375a5114b58b01d835281261850a87d64ba9099322d7437bba6633d. 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/BXWY82400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f8404d3bb1b721a6ae57b121e2d8bd8bbdfc486f11a44ea1a0ad2d8fcb35f4. 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/BXWY82400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98432acd06f9f72eaa6dd8ecb27ef12df93f4088e51bd3dadbf9d997055926d5. 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/BXWY82400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fa71f2d63eb0eae70d73edf90c4621b1801a61e94bf74e092f5f9d09f07fc4. 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/BXWY82400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c702693f87f09eadefad2c39c232f2ca6cf501b4deaaae5896f22c25b42d81. 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/BXWY82400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0542fea7e0ff8a158f81e101e829a93ee20a4d613b1e157e9051bc86720232a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXWY82400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4898062668783fef6d45ac787012f7b347a11ff32c6deed2fb9860a5f4192591. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXWY82400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8685845c1efe9353dd6c2ed1668a4b549c10262b637f97c62d5fd448fe713d41. 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/QZWDD2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670476331242848400a3a2d165510b660553c90e31f5a26e03bc7350e58e7dd9. 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/BXWY82400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b33a7e81e65b70cbbf0ad6b73b2d71a5b5dabf7f700a1c9c7da4c5b96fb50f2. 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/BXWY82400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77993df2354738848e6ce72bd538648750e6dbd418a56127945483ec61711c71. 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/USLZJ2381675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f94bd48d231450f0edb681a29fc0fabbbd76581b07307e405bcf81ea2c4cde. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXWY82200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c51037392c7404c7176b61f24687f552fde36e41100b2e73bb4fc0d1c21aa33. 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/BXWY82400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943a5f946b9693a48f01924c305264965c75fcd8bf33a67e8e311ebe0b87caa9. 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/BXWY82400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e8fc83d393c9e85eb754378c1f1f9b654dafa06afe4576c13f668c5c71e2dd. 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/QZ5FN2376314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3d53f263ffa6a2cb35311080220b647a9e995d2ef1ed71f711dbd82a9e0e06. 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/BXWY82400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d760cc0d74a771d2a3107c994d689c5731dfbc085aab9f977558fea6e03958a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22da830634cc5d2d3c41241e5147bb6ac43b4deb3654adaa032703bd428560a4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb27e89ef9a2e4e03dcf45dafa644ea8341ffca2310cb6452657f79638f8d52f. 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/BR9Z22100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9517bfbb1968a147df96f3cfc2699297cbc11f2ac5b896a350ff2444d0565c0. 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/BR9Z22100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3fa134345e5d1463f2c07e9966cc88bc7d111563b9e6474aad6cff94303c34. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63616eedd870765bf38ba8e9e09549538af718d2339f03e97b4f6f06302af853. 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/BR9Z22100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbaa3381da7096915218f6b6d70f131357608b5115f92779d881b953515f1a1. 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/BR9Z22000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23afc25f909a6881db1ad96731d457c6439ccbef53937f60fb95b8d0db1dd532. 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/BR9Z22100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cb0c4a58913a5fc84bd3d6369cb6fc882dbfc71985019b390c58433214f87f. 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/BR9Z22100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dbfe5bcca2562c9a553a1c912c5de30236cb2a9b4fe58aac31b0c0ec27edc0. 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/BR9Z22100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971117533f7dbcc7a088f582ef52971c241c2238e4b8a5b69c49e49caadb8e65. 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/BR9Z22100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f122576539ddd68ffd735953b66556388212a6b596f530eed7e6ab6116a9ae. 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/BR9Z22100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581ec631795fd9e777add31f71ce3a80dcd4e372fbb9f10a05a6ef01ce8166d6. 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/BR9Z22100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfe9beb404681e609fa8f07908f7ed6a4548ea868a2ce3015834f3f09ef265d. 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/BR9Z22100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2ef99aded1b3313f9edcb5ca507445375d86176c00e87f44ff0ac9d7ed6e9f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016dff471170ad4954328c1512baec6874388963f251f29bdbf0e5e938b33110. 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/BR9Z22100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35b0d7540ef975ff83b13ab34e9558c75219eef8cd9868b8f1d24a667f07f06. 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/BR9Z22100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776c5623535a2bd958c5d8532da228572994ec79e14875943f8d1962a3345322. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BXSOD2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35740880ce5d78747f37e436653e0f1282bd4a7e5696c7512890efac1f0c5595. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXWPS1900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50901ee37d38e206abb765dc72f5e5a71688a1a7cab103925bbbf65325abe0a. 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/QZHZ51954072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61be78328dffc6f61defc751e481c4d339f604d7ba6581cd56d2e734ab288b8a. 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/QZHN51921716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0145ed3b93568a3fa60d79878d06a225278bc9be9a0b2d0624e8e4decc3a617. 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/US7VG1835922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4671bada8a60474d6a225a6174cde340abe3c3d1502c6c358fcbc527adf5b2fb. 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/BR9Z21800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae5b409cf3210d38f30a94e4d6a1691cdd0385aecd089c79223e3c6d68ce7d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZGLS1982797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a4874b213f40f016f6563ad82f4ed5d7697ceaf90c9e83ace7c23bda7c66c7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMZ92056997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa528288fe2e848516eede3b2b7ae7804a502db5f519cbae472b3f4ce35c395df. 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/QZMZ92056998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edeaef826d4303491084edfae73bfa53bed30248e872b8fbca1ab6aac1c5f7b. 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/QZMZ92056999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83783f7752fdf4224c7ad446f323f41acbb97dd2ca2ee9c58b3f7a8c09cb9c82. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZMZ92056996.
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 0xc5e2244746c938bff6e3fc94833a62397aca4f5763e1a915d9d900c20c433bb1. 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/QZFZ42076157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6503a404e3f3d7a10bb032e3d19269d0bb3e6cd9257ce30e08fb9a9b09fce22. 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/QZNJW2019036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96b812be9c46a090a7e2072d5709cb0b984e84288b57e8dddaff24e7185c8f9. 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/QZNJW2019037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56478f463b827e11c3a862375f614602a9f85037bdc9dca37937569a0a5823b0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNJW2019038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf946ffeec164468129aac542ca27b261b5f71f623136d1f22b37e30266c7cb6e. 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/QZNJW2019039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1aabb3d43172963ea8fa67a3f7cc9c9819e5ebafc0e613cc5538b24ac99a84. 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/US7VG1794139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838cdd7de8ffe9102c5f0317cf0bb5ba78d0a1e4c62e7f034f9fb7282e6fce20. 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/BXDQP1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646a24b58565b74d36a68198b9e41ba5e4a494fc2289ca2e94a592b33a6f9f39. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZB4J1889591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490a56029cd9d68b245d146a95d38ba43b8837e307961e863a2c066a5dcfc5ea. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZES81831210.