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 0x71c63dbb4f15b8ecc45ab696044adea8ac3cd52d3c15109690a11cc98289ff27. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2605833e-0b82-49e1-bac8-5ce240c25276.json and https://artists.proofprofile.net/proofs/artist/2605833e-0b82-49e1-bac8-5ce240c25276.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 0x4a08b3a3f7f6285d4513786cc9953114800038ef0c705d638992367c60feed92. 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/CA5KR2390935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf985acb4dd11779d070653b22d18ded399c403686922976defdcafdf3665a67. 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/CA5KR1972614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8e34247609b6f5b0cbb140214e5fa23bebc73c1ff145bc03e716918424265f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADE1795988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917c0a0a88a27de0047e7a946a431ed233083c9267f7ca32c35d3571d4da468e. 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/TCADE1795994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf77cc66f3490db90e763ca0f731b863263e19224195fc8912836a95763edf1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADE1796000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a1618ae3490eb673c6f0fbf9236d25c681eea60d7f99ae95a88ede057aeee8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2380539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda9fdccb5d43fe3464c17cbe4c4de660875b043f7bb08117ddc974bcf53117e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAUM82300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d7f1789f3b5c08aea86122d4045974b80f0eb35b0ab671305bca4b9f2e0558. 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/CA5KR2330625.
Gummy Worm (Dirt Monkey x Jantsen Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e503be7a02edb60750eee774ee24aa7456eea868d73aa08b3961dac7ee60712. 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/TCAGN2259277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38bc4c14120aadd0d0fbcc1087e7010ae84fb3b930a5fde1cc21f4b488f6833. 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/CAUM82200386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737b61687729d624887050f0305831ab4ea3ebb3caf87a818a09b808fff28632. 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/TCACK1580874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dd25c9defe77baa4b2d302fd9068e38bac0ee53aa8a6b2d3454edaee9abb64. 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/CA5KR2297290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcec4a1f40b0cce134de69781419be08b81139622cfbec664bae83473a0c1c1. 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/QZMHP2042052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d98bccdba432f5a42387135f7bcba1b0df12170032237c9a803635318dae4d0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM42K1943363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339a2a8837718462cee11b261065742be0abdb98acea67cd8c72d8482115eef5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADH1723555.