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 0x1a3db34cee26843fdbe772b79774d9f1f9d14147a0f497e69df95d9f6e250322. 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/c0e5e789-57a4-4498-aaab-6ec176d62d4c.json and https://artists.proofprofile.net/proofs/artist/c0e5e789-57a4-4498-aaab-6ec176d62d4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Undertale Yellow Selects (From the UTY Fangame Soundtrack)
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 0x9b7e287f131a9cd5ae4cfdbd429f5110a4672505238d5a7ece65355d65f62713. 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/QZWFN2382983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c92e889e386d90d0839c82244a88da37fc2953f242bdaccd6f5c48dd5a9d64. 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/QZWFN2382984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6924c54a7563b1026135e88708273875bcfd989d60d6263528e2aa007acad08a. 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/QZWFN2382985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f91a34b03c657079b501b5c9a32ef380c5d72f8d8880ee999fe3a12b26c88f1. 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/QZWFN2382986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d903417a2661effe3d125f9a25b5e8068e11e182d31708712fb81a27372094a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZWFN2382987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8448db142e6baa8475fdb0ea166f2f5af0fdf44e8bbde8e534e8e844c50fdd. 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/QZWFN2382988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9a7eda7510bbb99d9a067adb326a026fb35f5081a7a20e650d0dbed8df7249. 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/QZWFN2382989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d4802b5281173e971ca1a06510039adc9f4bb458080ddc57f23ec3ee17b2d5. 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/QZWFN2382990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d389b7153568682e15071c018206fff53c5e37a6d85b41325098eb147df0a89. 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/QZWFN2382991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520b5466620f28c6e92d509da0f2e18204bbdf804b6b3f797b6a945c4fe210cf. 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/QZWFN2382992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad34fe549103bad8e772e3f99666b619d757414ce877f09ce85e21524e98b1db. 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/QZWFN2382993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b551195cd22af734a57406553dadacc04ef4de84af443ddb300c7b4f176b7e2. 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/QZWFN2382994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537994cfd0b54d6e527a5fa2b9bb8f886ab8ff2c9a2061b7e7b34ca18863c5d8. 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/QZWFN2382995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff5c1e19d25b1a9c85e686aedadf087893b0b223f8657b93264afedf776869c. 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/QZWFN2382996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81608705279d83064a1494368f96330783dc462c36a9afa21541071700a7fc82. 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/QZWFN2382997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8765ad7a79161ee7fdc7d88cdaf661042ecf0a90bc57b860faf7e5cbac2c5f18. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZWFN2382998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed959b61b59d28a77c778ee8acc355530a465278538902cf31277b2bfd9204e7. 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/QZWFN2382999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779c986610a0c45a341754c535f86c081496a1c85720179ec9e4c85ccb4686e3. 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/QZWFN2383000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddd3e71ea471780b918ab6f549efbe659f97c966ec01c745b0c82416dbffc09. 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/QZWFN2383001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3df8bfc29431b0530cada25aa69862a56fba9c596776eb60336fea5cbeb696c. 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/QZWFN2383002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a21027bed08ac02fcb1140f14f1eb73a7cd5d99ae6c56062f7d4dba51f5254. 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/QZWFN2383003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8096dd46eec92f3b2cebdf56d8364518a26213eb68b0d0492e506871c1f1e5c. 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/QZWFN2383004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8d5c5c22acf291ce0561ec5d4a67c711369d252a8389cff05970f264ba7ce1. 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/QZWFN2383005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d4d823c0beb24099046dd9294738d5b42d907a6c7405e736f9dffd3520adb9. 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/QZWFN2383006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184a65503bf0c19cf022c02a0a8470cb3a94ead282555717f832ac6da50742f1. 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/QZWFN2383007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4498de036d49a5198d7244b4a9b4c47a3a2298585deb31dee683130ab804e8fd. 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/QZWFN2383008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b133ba4fed67e56b6cd20d3c52b53958acf1f05472e13f198d9939d64538b7. 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/QZWFN2383009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9aed0c1a011d8db40a870952e53a70c8af2477af1be0bd17375cac5e652b573. 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/QZWFN2383010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39370704b59ea7dbf3661b28df071ecd6295dfff4709c49ee1a00345b3cc7cc8. 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/QZWFN2383011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6a6ab1d569ef56431e355bc44ecafe1d191c148265cf0f34e7fe5d5cb86ed4. 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/QZWFN2383012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb857ac5ca6d98be50c49cc8125827914f6a8e5832c5fe986f60ba3fcf291fbc4. 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/QZWFN2383013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d53e22cfed7cf23457fe7b2576d96815c52737c20f629d0ce28f58442374f1. 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/QZWFN2383014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1348e9b5771fd3f477453062ef7c4ed6c3877538fc4d21f03a98153a8f32fb2. 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/QZWFN2383015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd898570199722ffc4285bf37c887fcd533b7ed5b63c81266ab85ac91778ce9c2. 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/QZWFN2383016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc43cc876a89db269f3d01bc9f29f8232d8e54febcbb67a770874a437c302af. 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/QZWFN2383017.