1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x08b616819b45449b5fb6528021e3cd67ba48b59ba04635448a90a34b8886f46e. 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/1097c398-521a-4cc9-9ec3-1a20b66b6df2.json and https://artists.proofprofile.net/proofs/artist/1097c398-521a-4cc9-9ec3-1a20b66b6df2.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 → block OTSBitcoinBlock must exist at that height 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 0xa0dacdd273c1cc0b5c7cd6d138e7f7154a5479ca18e354a2dd662d7aa85a8586. 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/DEBT90600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9331fd107c538c8ae34def6ba1079de756b5eafaff07237010b9a6f9bed1f0f. 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/DEBT90600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9becd84412ecb5fa4a2cf820d4bf4c252a329f5f95c3a456ebf074fced033f3. 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/DEBT90600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f808ab8752d27a2f5ac07ecc48fdc1ba80fe0c6dbaf2fb902671e8ae6a24517. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEBT90700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca6df5b325c226603f5d928939a8710d3bf4da6a3872e22f3cdfc5484b5d2a8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:54:19Z), 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/DEBT90800072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c39e31be154a1b971db200577b1a0314c21ff6df4bc7d8a0cd75cc478bc2c8a. 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/DEBT91000188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eed3d1bc5c062c11b41e26693bdaa3b23782dc73aa74f3fe3907089c4f9608. 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/DEBT91000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d40541e254213a61fde2629b948a790080974f2aa95850cd4173eb3b70efeb4. 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/DEBT91100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9078620749819030f240fdd565023625a9dec0108ad472fbe0a2ef50af1bbd. 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/DEBT91100113.
Scheiße bleibt Scheiße (feat. Alles.Scheisze)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfa2952cac3956d906a22a604bba5d330f8726c5d7d6d846ed98863ba659045. 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/DEBT91700097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863224428e5e876a16b9ac1641613f2a938e5b1876044de1058cd31d59a387ad. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEBT91700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fd11f90259e78b4c782dc6cb121f4d099b56e6b1bc484d5db0e926b2a838ca. 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/DEBT91700102.
Ich weiß die Welt riecht streng nach Pisse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7194fce84504639e2482a87c31ebb053682c9cb020564d62f07e395497c0eb4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEBT91700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefa10a323cc55e6304ce8e396276b8dffdb2aef96086c8c3cf5b07e92f07b57. 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/DEBT91700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5d46df482972b28aa757ff092bba2580529e71ca772bfe6936928ffaf6cd2b. 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/DEBT91900117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3652cfb80575e9030abd48bc3ed3021d8f498c89d546f523016cbb30d2255a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:04Z), 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/DEBT91900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63db34aead5d87a06cc5047d538a9b9e764ba7e51f452a2007e14c86af94092d. 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/DEBT91900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d93437ebc8549f6428c4a00b11ff8025059fad0df5a593576b0a3833d25e812. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/DEBT91900126.
Das Unbehagen in der Kultur (ausgewählte Werke 2001 - 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d10b7f1ba7441943dfe328f7f78faa3ad4eb1eb2ff9240ca838b589c1b49b1. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEBT92300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2d76260be85124d41e84d437814ccf7c56dd9875b8f1b6c0876a94ddaf28ac. 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/DEBT92300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883eb99e996c776b29a8682e923b316dad4ca5a4f9e981f943e5853f339813dd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEBT92300221.