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 0xa4d27ed142462d14e41471b98dee5b19bf0d2b71fc61edf881b7b27048a91002. 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/efc6e58a-6f5f-48bd-9da6-26f99af81888.json and https://artists.proofprofile.net/proofs/artist/efc6e58a-6f5f-48bd-9da6-26f99af81888.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Von Gott geschickt: Vom Teufel getrieben
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 0x8e516cdcdd275d4aaad52f34219bb577b9ba3d632fc6af93bbd550a48c1ff51b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEQ022110413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6af2ee4fe9e32668ba017c40d202edbae4efb1e8f2cf796197311a82a2887af. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:15:45Z), 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/DEQ022110414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b91b1d098ee4f113ec8c8abf007e23846a39779d49bb704bf6ef3d49276f2e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEQ022110416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4732b87f2635b7cd75dd81e31e7d51d6347a4b114679a54099b575da56171d1. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEQ022110418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3afaea89275d89e3553dc899b4be5b2b79c0e2c1a67a0e64bd7bc341fe24d34. 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/DEQ022110420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cf2e03ba28154eeac7ec4f7e7668d5b39311e5f2f7aea5b6b95f2046529ef2. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/DEQ022110423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e516cdcdd275d4aaad52f34219bb577b9ba3d632fc6af93bbd550a48c1ff51b. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:39:25Z), 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/DEQ022110413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aa33ebaba1fdaf9ebfe9dfedb4f2082c7f14684646a76c2d25fee0bd99a1b4. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:41:22Z), 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/DEQ022110415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f5154cfa18b62221b6dbc88c6b0c8106535f25a8dabea004d10841f5a36c5f. 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/DEQ022276083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d390bb2a743aa2c550be15557ed9181e6e145aaf67a35f3b54faeac32124f51. 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/DEQ022390271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ced80c259c2f0df17f1b43d18431c39cad16020efdf02fde97fbdc42eec7d0d. 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/DEYX82177866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba238e17f2a3802b8268c6788802d62fe7e59595ff71a946ab6d2858ba8ded3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEYX82184898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343bdb663ef4be42173375b1637087b1cdbf3df04b39b2cd959a6e7fa440f64c. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/DEYX82209250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd2f4d69136e6d40bdec8f0d0adf6e5194c9603c43125fa3d5280b72e284bfa. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/DEYX82248457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92939a538d9edc477be360bc8a32764b1e748ccd7a8d8e8817e340564bd3edc0. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:11:14Z), 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/DEYX82199240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba238e17f2a3802b8268c6788802d62fe7e59595ff71a946ab6d2858ba8ded3. 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/DEYX82184898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ced8c9f0b95d765ed9cf7a6cf100b97cce0be3f6247f173cd3b37fba7504cd. 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/DEYX82260465.