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 0xb3c3f65276f331b33feb03f845672c8711d5b9c3eb0923e245d4d0b566018749. 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/ac089a8b-bbdf-4dee-bd04-beca8f9c9d13.json and https://artists.proofprofile.net/proofs/artist/ac089a8b-bbdf-4dee-bd04-beca8f9c9d13.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 0x6ac7ce44847d9ca10d079fc45e70d4a4978bb53c5901809a506d06e6b72a6c98. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZNWU2482564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca20e7d7b4413a6725eb8acf45ff2e1493b7fb75e68767093475bd71baf0e0c4. 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/QZNWY2453360.
Liebe wie Musik (Dance, Speed Up Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe332c2132ab0154172e740f8b65009992e807636766ee8739f37d2386662c1b8. 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/QZTB92442702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf571ed2b10c1953fc2d49c6f3f1e1c0d88dd8a15ea5fc414edfa8d074e1fa54c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:14:51Z), 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/QZWFH2417883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6a7e0fafa199d2318f3130463b8cc2b11253dd91933c7f4f7fda3752caf2eb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:19Z), 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/QZWFQ2485816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7933e28cf5b4f2a01ee35d492fde989fb3abfdc3677625bbd0693c9446819c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:51:01Z), 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/QZWFQ2485065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f25ecc4c8711dcc55588908fff41e87c92f018d00026b59603e73ccb3075e41. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZWFU2494166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73eeebd7f048823eacc1e183f71c6d0f2fb752b562fa52f0e3dd300395904a62. 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/QZZ772432224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8593d46d767e1f24e1700752ba6721e16f795582b500adecfdd07f501bd01adb. 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/QZZ7W2477706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31868a88d6b5830df8d063f932d21653416a4545605caaf3ffd10175689d3165. 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/QZZ7N2458112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ad8db70a875381b3f51428f865bd47717347cf135bdb49756f4e10426984c3. 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/QT3EY2429871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e06a6186e3697ce541145384270caf8ccbfd508d6c9f85cae03551b25d3ab5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZFZ62516132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb839b3773d0782d491f3a795a8840d64a23eb0e3407dafcf8dc148b08fa9d73a. 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/QZFZ72531227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f4e050ccbfb2c27a43945ff4ba6eaaa504f2a0512a1e8ac4ae120cbc3e1935. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZES92508978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601e3df9b7fe010beed3485364edca13261d6737b3f9dd44b9f26518470e4dcc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:37:13Z), 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/QZK6N2500919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cfc441bb916d2eacee9fce6b7e2abdf5a75a9d60967e54567fb36015228bd3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6G2509391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ba2c10b15a903eb28bbd985362cac16d534b666721bd2ecd8e3214357e12a. 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/QZMER2530256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9483782d57b5c33fa932403af8cda3fe99ad2b75162ca816c07ebb0f18af45c3. 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/QZZ792522789.
Jede Frau steht Schlange (ABER: Du bist die EINE)
Jede Frau steht Schlange - ABER: Du bist die EINE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a6d555b28ff20283cc9bda603d3102c34a2dca8cc4d5a41fff58112cdf4e0. 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/QT3F72568500.