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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d5ce191bc7d8f5feaa7d60f84c16cdeae9a5d4458cc60f77a97bc35b76e81e. 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/637c9a0e-cd54-4e06-a537-2fa7f4b5768b.json and https://artists.proofprofile.net/proofs/artist/637c9a0e-cd54-4e06-a537-2fa7f4b5768b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nursery Rhymes Kids Songs: Minions Edition
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96dc58f9af2bc875df62b573075caa9ceb7b8810c85c2327a47f9ab3efdd816. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUXN22232276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ca7925fdb912dc8fa07101c09620cb7c5d134e45ea26015d1249059aa605ae. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/AUXN22232279.
Nursery Rhymes Kids Songs: Minions Edition, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d4f480e217f14272987a6530dc3df684f3b9f96654ba1943cadef63e859b5e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/AUXN22235818.
Nursery Rhymes Kids Songs: Minions Edition, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20eedddeac2ff06667c7096dea45b8bf8100dc8be0bae7e16812a9982853f6bd. 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/AUXN22239240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ac490d62455a06d6078c296d4425efa1cde3c1cd3560e30fca798d3872cb06. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/AUXN22239243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ac0e9eb0238096681f03038e044a14bbdcf94412d9a7015797963f26e94845. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/AUXN22239244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fffdff0aedd138d658112c8bb6efd8134942a6db182f25aea37208d25f5a109. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUXN22239245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a12caffed636944c49f4cc533f773b6c0470d38f0b6247f760482e41d964b66. 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/AUXN22239246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16213101e2d08c276b31c272fb4762f2c988f49470fdd396f7430099d9c70757. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/AUXN22254559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43724c8e367ee7c0bd7fecd1c944c846e7394e6ff75e097a0fa9ef4ea827bfa3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUXN22254565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeded288efe543a978d9c1dc9f10ab7a321201bb0d3a0adea039cc652fae86571. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/AUXN22254566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232dbf7e6a74d79efd80e81636bcc9daa3ea44a23ca0e3894800d4037fc1ac86. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUXN22254568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1ae0bcfac9c4712c51d9e49f760289bd550581c333d04b3fec80a3a7afdc3b. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZTAY2297555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d8166d243d97d3f7b6f485a52f3f257850f7c87f39c7a937bd412cd0d6e6da. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QZNWR2249662.
Twinkle Twinkle Little Star (Techno Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11994c8f0d47653047ccace44aed8fb0ae437e34296a3e22524d52ef49801394. 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/AUXN22452800.
Everybody Wants to Rule the World (Minions Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475cabeed0c527a7e67d3f6a5d0cee0f6145d409c5c0ce50d41169d01103f274. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUXN22510269.
Day-O (The Banana Boat Song) [Minions Remix]