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 0xc4e185fe0ede597b899d08c6d0fb82a81df4ec857e97f72c7972b209727cdedd. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47154cd2-fde7-421f-8427-760090cdc8fa.json and https://artists.proofprofile.net/proofs/artist/47154cd2-fde7-421f-8427-760090cdc8fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ein Yeti will hoch hinaus (Das Original-Hörspiel zum Kinofilm)
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 0x7c7371e47ec1a6f170c7664cd0337d94bc92a4755ae801378091d51bdf491126. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DEH822102207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b744470366468b6b480c947570e8a6a1794c28e935ce4390889dd99ee1fc49a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEH822102208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ba17f5891dd95d07001ce7d935bef1373f2d6020bca5d6bb9f0a0cca0d0531. 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/DEH822102209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64280caace647aa16d4e53ef700eadbde5fd20e06a6cbb220449b43315a3a8c. 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/DEH822102211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca9d18120cab3b05033e0cc9b4cd25f7a9adb9cd47df6f9d1f9025c685644fa. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/DEH822102212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a052446c78c90f2f7465d05c25b9762ffb489155ab6b6ec50e9acda5b40133. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DEH822102213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48e636b9386c24adf7e76aa75ac448265dde508b15b258a372af6f45796cd86. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:45Z), 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/DEH822102215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e61e07228fbf0ec11a1cc5625d3db6a3079a4e168430d816bc7d034e903285f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:06:14Z), 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/DEH822102216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c93be3cbca9895f2cde1cbdce4f76094cc952c0ebb289602f80385778d3d3d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEH822102217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b317f7ccc7c4d4d222f778340cdf75197334ed4b554d082dc6f7c135b34e32. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/DEH822102218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd748cba7d7647a0b24406b62286b89da3e361d8fc8c9f78c711362e8a03a0ad2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:07:16Z), 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/DEH822102221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d9ca4ec38de1e1ef89a1dabec684f28569224c8f81aba2b0b8babb2d7168bd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEH822102222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6c62a28dc25641472abc5fd1670b9efb2b648b1189cd501eda172ae6db512d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEH822102223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2768216b7e16225b310758813d9ff7a7d66bb55640d55867f40217ea0bbda9b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:36Z), 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/DEH822102224.