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 0x436502c348bc220f28ff9e617a8590ef11970de2b48caec121c09d12ed3b5a5a. 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/794e1453-7cfd-4e2b-a744-05d991591510.json and https://artists.proofprofile.net/proofs/artist/794e1453-7cfd-4e2b-a744-05d991591510.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 0xcd8aac83fbafdfd7e95e323164ba3bbdb74f05dcc080744c56fe8e389fbbd270. 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/SE3GO2212001.
Tillfälligheter / Hungry Hearts (Mashup)
Tillfälligheter / Hungry Hearts - Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f0de864a364db6eef3d68f6c551212145deb5a50e187bbab9864c766f2f0c2. 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/SEUM72400956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef843c22881bbe7d869160102b70ad66ea7ad985e8a93d0a277585bb7100833. 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/DEUM72406883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c61dfc5f6e4a0baf1b76e0416f08d58da3632e284100fc07ad2f0ebc9e379b. 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/SE3GO2003301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcba58fea21413033078c2ef1119734001b360ba895f0cd1930670bb74436bf. 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/SE3GO1903901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c67b4b5cf626082a4cbdc8366ba842f73160621c24963cb90090336f1b61438. 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/SE3GO1803801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59279a50483f6a23547ea516fdeaac5b44085f7727aaac43dc319bf139af4221. 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/SE3GO1802601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4297d079925849b1bced82c0c61b190120023314e48f94e42ae6933083e0dc51. 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/SE3GO1703301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083c3887e98e20f5d28879e806109770d713eb65f58582c25769d2d8251e7453. 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/SE3GO1702501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3a92ba529dbaa5bbabc0193b0fa6a8329e7100b7f2b01cc16d3740c38b6413. 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/SE3GO1701601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93ce73b7b59b52e446dc5b64ea8c5c8a97f1db1bb205691052d64fe05dbb14c. 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/SE3GO2206401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139f7909bf7bda2ccd0daea488ebd52fe14afa4a3f99f1855de0ef94087cca46. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE3GO2111301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82567e0bd8951154367e354f7b4f961c2ff90cb4600cbebf37889c092f683c3. 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/SE3GO2116301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af9b93bc81b696b753e21a6c467894b73e38fa6d16a5ec4a09c529ce2b7f271. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBGA2500559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f8f60d8aa3a4d6693d0114a8fcaf23f23d111757deb030437b4be669f119ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5EM2401401.