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 0x11331b89957d90b9e0901cb0db889a2b32c19211cc1a249f4502561c349c35c7. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5eef3732-edb7-4144-938e-9de262f39ab1.json and https://artists.proofprofile.net/proofs/artist/5eef3732-edb7-4144-938e-9de262f39ab1.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 0xe6f8b8fac9704f3dda56c2c78bc8a846f936aee0e99788e47ddfc08956739a62. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJF2588114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe710fcb3153adbf24e72514449945275385e7052026ac3e0aa4e1f1e6e42b64d. 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/TCAJG2525426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5356ded8f5f9f38220c4aba6094f5e5bbe05e951858ea376d54b6fbeaca832c7. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZES72592739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64eb0749a97029dbb8bcc9e9f05381ea62cf61812731b3d6a05f1354decebca. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZHN62594957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a2649cf72fc6ba6cc19c0af370a277223d882a9ffacc3806437105f187490c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZES72595699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00201a62afe27b0430f62bae83b2aa6b7438d8ec6c2ce87fb7fa79f0513459af. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES72595727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e8349b614167ea5a119ab047d834796f8160e9d47540d1c710516305960b6d. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:26:51Z), 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/QZES72595730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2008573afca1be2318ca03de5dcee4181e9976fa5a50304c486392b2cb289a2c. 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/QZK6P2526974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8032940d4524d1549303de4417b24bf30da140c7617a0d2165477761fe516f2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN32507394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94565a3ef973a442b9cc988ce16adba8b935edb18f6e5452f0c2ceebb0a05d9f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZES72595740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f8b8fac9704f3dda56c2c78bc8a846f936aee0e99788e47ddfc08956739a62. 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/TCAJF2588114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe710fcb3153adbf24e72514449945275385e7052026ac3e0aa4e1f1e6e42b64d. 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/TCAJG2525426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5356ded8f5f9f38220c4aba6094f5e5bbe05e951858ea376d54b6fbeaca832c7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZES72592739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64eb0749a97029dbb8bcc9e9f05381ea62cf61812731b3d6a05f1354decebca. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:57:59Z), 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/QZHN62594957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a2649cf72fc6ba6cc19c0af370a277223d882a9ffacc3806437105f187490c. 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/QZES72595699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00201a62afe27b0430f62bae83b2aa6b7438d8ec6c2ce87fb7fa79f0513459af. 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/QZES72595727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e8349b614167ea5a119ab047d834796f8160e9d47540d1c710516305960b6d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZES72595730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2008573afca1be2318ca03de5dcee4181e9976fa5a50304c486392b2cb289a2c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6P2526974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8032940d4524d1549303de4417b24bf30da140c7617a0d2165477761fe516f2. 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/QZHN32507394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94565a3ef973a442b9cc988ce16adba8b935edb18f6e5452f0c2ceebb0a05d9f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZES72595740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2872f25ee75f162b015f743da4572e39d2dd2d51d60fba5c8ec55b549dba265. 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/QZK6P2547427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cef76eea3f6b02be26c16ffe30414b74978969fc9ee1e0e02e42f7b0805720. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZMEP2535300.
HO PRESO 150 GOCCE DI XAN E DOVEVO PRENDERNE 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa944c733e00529ab619160912ee6855c799ea9d2259c5039359954833b0cc5bc. 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/QZWFP2500261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eb740cdc6bbd5bcfe50b293e0bc76e3475275f0f6692ccf6de39bd7da73740. 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/QZWFP2561462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa944c733e00529ab619160912ee6855c799ea9d2259c5039359954833b0cc5bc. 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/QZWFP2500261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eb740cdc6bbd5bcfe50b293e0bc76e3475275f0f6692ccf6de39bd7da73740. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFP2561462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01be96352fc3574e19a1fe0314b8ac7316202260f04b55c2be2edd7edfa7b6b. 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/QZZ7X2530585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdee99aa95a6cab71df4f1efe6294cbb30ffde5180809b9a2e766651ff2b4be7. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:51:34Z), 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/QZZ7X2530586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9e8b6e653aaf381edb78b9a836f07c2ae9950d5c1f31beeaddf364d88e8e6b. 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/QZZ7X2530587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91548ba481bd63b75c704b50bfcd48d65051197f81a74047d633673d08e3c7c0. 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/QZZ7X2530588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6775008c67e66727bda65f999a31e9bb50ce197971f84b496ac6f6277f296d64. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZZ7X2530589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4105ed2e3466a964091a4850ab7b11265091a9d9b116760cd382bd038c8026a3. 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/QZZ7X2530590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13ed8a7daa20069e74f3370a80a89beaf89991f4009973473b1f23131a88819. 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/QZZ7X2530591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1149ce6dc24ebc2aa6d77a3cb22d7b34d73de40decce6553c7528bb13f8d33bf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7X2530592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1752904dc6e216ba1ac48b15acde2f09d4449e4002f133d1b81b8b961764d229. 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/QZZ7X2530593.