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 0xaa3947a45c4c2654bb60a73a72724c3e5188072f9ca00aaf2ede6f16825ea92c. 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/03fd832d-10eb-4950-a60b-ef17aa781c79.json and https://artists.proofprofile.net/proofs/artist/03fd832d-10eb-4950-a60b-ef17aa781c79.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 0x34a5793391b28717eedbaddfa59e0d58d7e012056421cd31ed15407e36649119. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:55:52Z), 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/DEH790406513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ac7c2690f4718d304fda1951adff889ef80c302dab405cc3e2bec3c82d4784. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEH790407809.
Randale unterm Weihnachtsbaum zweipunktnull
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b6ce565dbb89679c3812ac59658ebdad787ec0d70ccdee19b10a342588430f. 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/DEH790410208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ef972ea07abd5d3fd087f4ef7d822c25dbd6969b733ecfc600a07ebd133186. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEZ651203436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d636e501ce9e62702901088e5da2b6a8f8579b1d29d07b320dd7a34f888b1ff. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEZ651203446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5d6c19393cdcd88e103efb2a6cdeab46171b02ce4f2ad758413299999cebb2. 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/DEH791412605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b7dc8ca9ab0bff32b3010e814e97dc2dd3a210b862b190ffb371114c0f16d5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:28Z), 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/DEH791412601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09218ffe4bb80d3c519d056fa7f46d7a7c6c6253f9f65750a8414ba140044b6f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEH791412603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c4b70469286d9a87b44a925a24db681913e92b5f473de62febbef486ada7e3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEH791412604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe194e33c627a5ec6588a1f252c819ef1b5519c377f07df5815a0ea370399864b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEH791412902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c99a7e9167d1393d757ae342df1f5e75fc26c684fe9d45a66b745a8a023e59f. 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/DEUE11861112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd7eee695988954b21d3f329ab274015aa0450979d649dc21138f55cff102bf. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T03:00:29Z), 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/DEUE11861123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c99a7e9167d1393d757ae342df1f5e75fc26c684fe9d45a66b745a8a023e59f. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEUE11861112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b9ba9b7865f2b2f091aa13e23835774d968aa95e30de58c0f50851759020a7. 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/DEH792216702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34e4339f3b1562b358525e5c1f730e04b4d85a00cfd37ee0a9c2b459119e82e. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:05:23Z), 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/DEH792216705.
Mir geht es gut! Lieder zur inneren Ampel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e754e2e36517dc03a491d111975566c7acc178298ce301e56590a0a58d0aa9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEH792417801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c06ac1df21317ff86550518b61a12721d44654f20ddfd2858949e3e7004703. 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/DEH792417803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6d9e0c05d5d2e56af91c0a631a655ee34dd7ef0917f368159d12254d3f3dff. 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/DEH792518102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365291b669d4d4d0f1b5012634ecf64bc6149211ccf081cb264624b88ea0277a. 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/DEVF42203044.