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 0xe87957efb0ded5155456f6edcfef22562010d0e8d5b9bedcaab1681c09ae496b. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/196c30f8-9bdc-41dc-9c44-bff0f4f39a63.json and https://artists.proofprofile.net/proofs/artist/196c30f8-9bdc-41dc-9c44-bff0f4f39a63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x4a5351997967c94b9bbb834eb431a8591080d7040c05ad36c41cfbfe2c81618e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:57:43Z), 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/QZTAT2589765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee849650600669ffd5e99414e13c0d18c6ed3ce0c0144bd8b7180e5c33741194. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZTAT2589766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00401693f3524c23ce7428671055be6f00918181e7293cf69898a9df3065a53. 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/QZTAT2589767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00def1287384b52c63acefb77971293c4472896a0bbd90bf82a250e3e84af18. 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/QZTAT2589770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97adf9d7319fecdbc11369986fbfdfc6c64f44fcd82c226a7ceb9d36d29cdf57. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZTAT2589772.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3ddfafdea1d2d24ab25282179b83a766718d0f2cab0865398f1a3fe9bc09d5. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZTAT2589798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bee0caafb966baf748bef78f97ec55b0cdd1e317a8d6779c59967fcb89b58d3. 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/QZTAT2589802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018205b7c0cf345c253da8356ae4cfc302a909964b38ccd818d3829174af6dd. 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/QZTAT2589803.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3755a0dc28fdd906aaf13e9aadfe773274fdebe9c490744b51a96c29a3520e50. 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/QZTB42575657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1920f3bb3f0bffe407eb39f6930bfa81ad0aa0f4472721d428f7c3bdc56c3a24. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZTB42575658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d706735a4618443677d63f2444f0fbe24d1122838cdb163acc1d5eeca440c52. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTB42575659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e568d20fa537cff952feea40e973b48c1e8f44ce86a791be38b154d6302a6c6. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:50:34Z), 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/QZTB42575660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5e17682837dff542729e7ee85a6e07a416442f25d126127cf711b6f97a4b37. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QZTB42575661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5d03f4c86ecce823a86553a97d6bd3f2051b8a0c66a4fc021c5023589e05f1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB42575662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6f9a376d35e91fcaf12cfb50b0ca1ca12921fba136ecee1649ca13be22e80c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:57:29Z), 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/QZTB42575663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1996892616cd406786f70e10c5456d1671d838581a81639ba2ed65502800207b. 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/QZTB42575664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16c8f42b7f532d2bfac48fa22105fd41ca347e86a87f671794d691436549729. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:13:44Z), 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/QZTB42575665.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bfec38519ca7e0e7e039551faaf840809ecb6229212b5f759a2a2a2fc4cbde. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZTB62589731.
Salmos para lo Cotidiano | Música Cristiana Lo Fi Country para el Alma Diaria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd727d35988ec69ef78ac261b0a81181f809f59c6e01bfed08883ae86265e39aa. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:20:39Z), 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/QZTB72566235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6439e868d93d8029a9ceac50bae9cf829926628f133fa83ebf687cc02c35ed0c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTB72566236.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a637ad28698a4572709a4dc33484d2c2e38b13c1e71b91e973b3944df104fb2. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZZ772528376.