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 0x7a0d29a890e6b436a5861ab4297bdaa0ddbb13474a9597bcce2d225dc6f03186. 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/1336dc5d-5a98-41b7-9ef5-e5bba3a4b14a.json and https://artists.proofprofile.net/proofs/artist/1336dc5d-5a98-41b7-9ef5-e5bba3a4b14a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wohnverwandtschaften (Ungekürzte Lesung)
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 0x85d324aaa24862a889901a965e85ce3c3f77f818145613fcbcb763efbfed9e66. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/DEXO22469246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048bcc84a779949f74374e9e0b9053e8e156e7b0855067a9faa0c7ec5895d333. 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/DEXO22469248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92f48009943e1afa6bedce299ca0bef26ab86c6b5f13181ff8db531f4db9e38. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEXO22469247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047b78cce0c37a4ed7e6166db610ec9a0177d239edfb8735f91f57a74a40452c. 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/DEXO22469252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76d3437c08017e1dae1bd6cfc4b4ed30f037f4c080fda33f114e63a2fc19c1c. 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/DEXO22469249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d485ccb5725ac2aa1db41540d3946cb4a679e5a1933b072e3dfed58d15a4f9f. 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/DEXO22469251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936b6d6f9938884205d7d66c6e568407f4cfdb0ff318c72415c088019ff70446. 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/DEXO22469254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9925d5d4fb3ae6b4e198c2ae91a87da65ac06b0663fe4570fe3c16ba7fc481. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEXO22469255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924f47bbbe7362c0cfcb7ea64c4b4e77d8172ab97b7f34d7c6241288728d30e2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEXO22469259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4e4306caa04f5831c11d7e88f5710bc308f4df7168bdc8125cc3405ac7f003. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEXO22469257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d16d6b1c9160e16dfbebcc4917afceaa67e745c23a6a6bf10d45b71b2fe7a99. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEXO22469250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32716143c6711aa48f0702c17aa9a0aa1d275d41480a093a1839f9b5843d613. 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/DEXO22469253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026a0c5765c2b49a587780fa5e00274934808ab5cc56406836f1a167260a6d01. 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/DEXO22469263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76e04a8cb7f3408f226f5cb737e1eb9efa40994471121b41c302a389c689d04. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEXO22469258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8658172ef45f2611abcd9cf1edaed8a32f57c2c9808e83d9cc9302de2932bc. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/DEXO22469260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3644e9a17e7463646c7bc5543f3a98db290205402dfdca62260b96892f054164. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEXO22469264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173f679527f95b8d261fa89658f8170be973f417720f6203d78c7cd25be03b7a. 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/DEXO22469261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29427bf6ad393513e8adce5d89d475c4d279b0b6e9dddd27e90071e2d428a84a. 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/DEXO22469262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc116375c489ed8826f7e5e2d045fbd98e9cfbdf95d1acd8489bce9b55491e4. 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/DEXO22469265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c461c15ff9ba24181f94ef992d71ed2d8720cda080f2bb5d47d6263dc351a6. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/DEXO22469266.