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 0xc8aa6f2a68a71582a47514f953f9940de068cb4bb36e53b810e8ba290d77b11d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89445120-a5e9-4365-b3bd-e137135200bf.json and https://artists.proofprofile.net/proofs/artist/89445120-a5e9-4365-b3bd-e137135200bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Let Me Be Your Christmas Toy b/w A Day In The Life
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 0xd874ad4e401c0cb767e090de420eb3e2d2ab1eb515589254d9411bb7a4673b84. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCW60902718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067e9e5842ed78a356f4901f4ceab29e9d27c7994c596ec923458445c04b2005. 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/USCW60902710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6a6f1f9e4175f70cab9e9219c381be03779c8368a1502d745a03c986e838c7. 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/USCW60902705.
Midwest Funk: Funk 45s from Tornado Alley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894a72cd76fcb51284f794ab4ada541c7b32ec7509855174921fb1a5efc9fcc2. 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/US2S70412003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3da7357f23016837201181d59085981bb9fca2513d100bef1503993088b095. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US2S70412008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14ed89559afecf1e63b6847b45e5b7e537007cfbc6967b42928fb7cdcfdd7ae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US2S70412012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03081541342d7f535d79a97eca7d530ea9706b6b35c47e7217f8f417773a17d. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US2S70412013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7536a57e76617588a67899450349300739d712a6947f8c155171e3a71e4532e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US2S70412014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb4ff01715f57ab8596b2193f9dc55fa6a69b048f5192ca76ff00629fb84f85. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US2S70412015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491f5fe1e16ef06e258f77f2f4f2d8277b19e5954c6e7b1bccae139066df429e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US2S70412016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430c4f03ef1409aa1b328a1d0a0eb5c5d5be1b3ec092a6a125aa375a6f5d3d81. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US2S70412018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d8e9da8b0fb5661702bd5d125fc915fd9dbbf70f0534abc2d838ce054b7006. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US2S70412020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56da5cc82cea615019245b07729a5f88c184f4fbfaa5f013fd60c0e7c7ea75d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US2S70412023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e7b7c55def9f714b33f6d5348873fda50b0cc88e88474edc8ed1b5c4474f08. 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/USCW60902702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e6e716651e48179bd4fee3f2bb16b4fc28165815ae49b735172747d42477d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCW60902703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6a6f1f9e4175f70cab9e9219c381be03779c8368a1502d745a03c986e838c7. 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/USCW60902705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067e9e5842ed78a356f4901f4ceab29e9d27c7994c596ec923458445c04b2005. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCW60902710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f15a81f3e752b018b03bcb595b06778cd5b08a2e526fdfe3ce748ae42c7a0f9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCW60902713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dda6ca61ff90ae13ea9868c8c65406a6d796df668dca480456efe9ed52db7f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USCW60902716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd874ad4e401c0cb767e090de420eb3e2d2ab1eb515589254d9411bb7a4673b84. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCW60902718.