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 0x25f16e2b205f525880869cfeda7c60fa84286d33553938592101139a43e67381. 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/70a25153-dd92-429b-894f-935958daacc4.json and https://artists.proofprofile.net/proofs/artist/70a25153-dd92-429b-894f-935958daacc4.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 0xb78b0b6a74a1d7305fb85f29b30de801e540f3cc642014a6969047f04c93225d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM81190158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a7fabd3fb885d39b63441ce7587d5518a5a0f3f6c1d7a28c20aabbe68041fa. 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/USHM81190159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45942acdab0a8a259e8da9231d952978872232c597ccf3f04954f9f7039a65b. 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/USHM81190161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54abe635bcdf6a228870476b6a4832b0a4747138f692e9cd7d3826ac33824c5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CABQI1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5f156c8658b2f7a8a3f087ff8ef1746e483478411369a2ae41bffa7a5e1ba6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CABQI1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9144ac2c48a08a872e1e62940185c7131410211b8c8ea03475d0a889f23c0611. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/CABQI1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f9c20b37dc9fd4c6281684bf762930471760d4a99a71c2024a7ba60a320f17. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:59:34Z), 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/CABQI1700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078a637125d171797e7119e5bf791380c17092c24a7a2175759ef3bb4e1a200b. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/CABQI1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00cb4419cd96ea54c3e2bf06e60240ad3709ff62127ebb03661084475f16124. 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/CABQI1700019.
Curio (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Curio (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9220a82c85d1c4a64792a1213ae53a411c727401375fa593cc3d8aa59739032. 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/CABQI1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf12d89290b65c2fc952acca107d45ec59a5984ea2edab8e8aec258c51b4ec0f. 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/CABQI1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37175fa37e4c23aafcf8caf0199f3458135bb726bacbd7b6e643bb74cdf6c335. 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/CABQI1700050.
See You When You Appear (Electric Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325c92f8a76659e2a82b31a158bc0ba546a99919421aee4e988ffb492918f626. 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/CABQI1700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c1c378c108ce0ffefdca473ecfc2178c203e7f4691659c7b6e964c93dfbdb2. 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/QZHN72390975.