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 0xa909b9ec4064331b4270c1399a9cb136c449f2636c751b4ebe65a911b2ba43d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acf08a8b-580d-426e-b460-5a64cfe961e3.json and https://artists.proofprofile.net/proofs/artist/acf08a8b-580d-426e-b460-5a64cfe961e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backpfeife auf Dauerschleife (Kassettenedition)
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 0x0685724478d0153bb609bc8fe107f945e4ad3a92db40842a117b4a201a458e4a. 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/DEZ651709621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cb8855018c03b0a21a6b951c739432086de147e3d80556c8e1c97e265e26bb. 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/DEZ651709622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c5dd1ec2c58396364ccc807e6af93431c1afaa17d9178c2423fc24db95330c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEZ651709623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa9ccd493a042b715fca94cf62299fe18935f7dbcf1d739f18a600ad29ecc6f. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEZ651709624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945aae09fc35a394d4099684fb42e4d7185adfde3154f4e70656d5c1f6274664. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEZ651709625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080aacdf0e7249223abcc193104224b4ad91ce1d8ef7f90d910e2422edc87338. 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/DEZ651709626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dd95c75e342e94c6c31eabd7e0d5e68b6e2b5b31ba47aee5119f25d2d21d08. 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/DEZ651709609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdddecf76d7b585bdc09027f2376cfd9388ff389ea12c4086008e27c0138c6b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:35Z), 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/DEZ651709610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6b1df81024fd95623024533a16a56b5f24e1769023ba2bef60799e50c8792f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DEZ651709611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ea9a7d9fad10a88909a0b06306debc140edbe3849ba47f895b3832dad1f7a2. 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/DEZ651709612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb742211429120b924752d53b885a448afef18835b740beccd5d703e5dbb7dec1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:11:13Z), 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/DEZ651709613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8dbbd058c8e8266a263e92c51027bb71149752c1068b8ae2e9b548d7a0a43f. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:53:15Z), 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/DEZ651709614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8761f5ab9d027a944af8c4f226e993c77bbc2fed3a346c7a2ad5978fe45745d. 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/DEZ651709620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aae198cf6cab29f7a520ab479924da133d8e0ed9df89c469d2ad2374e337ab8. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:22:40Z), 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/DEZ651719268.
Audiolith Singles Club Nr. 10: Gelebte Weisheiten, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39a065a11af281f5c9cdb0c4cee88f24a751b9e1f38a7f323ada523b755b953. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEBT91800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58456d9965e46e313b03add50b45b0e58132ede088bb7b21db44e41081ee7ac6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEBT91800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e19c85d1ac497becbf07ecd13cb892a3ef86e8caa7a0b9e5dc3382e294fe87b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEBT91800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b992aca7774225226ed3e3be23a92125f6dba2863d31283e35661dc3cb6440. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEBT91800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27283c3bdf9ea10e9ebeb0a9fcb7c3477a613044e2699c053a4a6cfd7e6594e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEBT91800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3be919a0677265642b1fbf36caf2ccd4462e1e5109df092804fdf6eb81d6057. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEBT91800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df1a3ff4a9177eab684f9ca7858966cb60e3602a0d01be610d3dffc8d6f12d8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEBT91900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a13c076882946456bc93791f69876ef6e579e12ad3a40b20759f05a831de84. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEBT91900020.
Bildungsbürgerprolls / Patchworkwendekids
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbafb3cf2fac82bbcd280c8f79e5071c3b3d070d6d77fcaac750ab225d66bad8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEBT92200290.
Lebermord am Centercourt (Kluge & DJ Felge Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5b4eaf11cc824570e88e5b2e561b9b11684f8cb66fc796ec868ceabe6b06fc. 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/DEBT92500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb6cc3e3b84163609363e730f83513ebf38340539edae7441aedb5d7749e1a8. 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/CH7812104265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cad6903e89947a690964b44b30333644c8439622d39ae0975b74d80ccfeb008. 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/DEBL61700597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e8e37e371548d621235977f2f028de2f9da333bf976d861b60744a5a742e30. 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/DEXN82062908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f9ff5ae62e265ed0d02c6ed4183521f3f2aa15e6f8f9c196bbcc6b155fbf64. 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/DELJ81815294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785c680f95d47f230f5d5fa3cc233cbd47c6d6148fe9ec4482a32a4f0abf5130. 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/DEZC62252611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135a8a6e6bb620cce9a0dd817ca4f53df785229eb856c33fcd6197a18efc7d67. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DELJ81932363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90c8842235da12f8d6110346d0b5a055b07c3607c4a2ece3faee5f209a4db6a. 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/DEQ021808340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b54272f351a97bde0b48d810aad9921f6f9dfd58886e2728eb3a8c31f71321. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEBT92500046.
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