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 0xc055ff5eee366ec0092aa5397ad0d1d476fc1d04a013387e40d99c4bfdcf4fb7. 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/3e62f868-291f-4471-a8e5-a7706a52dd90.json and https://artists.proofprofile.net/proofs/artist/3e62f868-291f-4471-a8e5-a7706a52dd90.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 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 0xdb4666766e1aaf4251a5c1b74145bcc791abb24372e1f19930896a06f5d1d325. 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/NLT2H2200856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe91907368f99f7ac140efb7828d6510aa425919f3994363ee4808fb414cfbb. 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/QM6N22233368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d85dd889ba5fd0b1a5833a075b879d0a258584839e9c27472a5a7f4b9a6886. 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/DGA072489556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220cc6019b030ec3d54957c0ca6cba94471d04ee01cadd7089b6a75167e18b74. 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/QZMHL2337678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b198abc10d955f39a527dfdbcfd37ea052cff85d0978583cc145504bf6b167b. 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/RUAGV2303269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1bc632dfce820986ed0db0168459b17360cc7e8baffc76e8943dca2e1ef8b5. 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/QZ5FN2304485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6501d72460df3ec0743b572b8fd8c61412686e36144834b87a11c344621df4b3. 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/NLZ542300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bad87fcd80dcd101c94315ad1615f951a53c33a43aafa7d5fa545a125475c50. 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/FRR642201549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdc40dc6d8febdd171745708b867fa9942878af7b2d1f1954768e48b8d78883. 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/QZS642298769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1011e9a66e48808ec11b1fba7dfad94cf38032b99405b28ceaf4d6d50b2c52b5. 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/QMBZ92249783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bba4be188a756a15eeba187e02ed090dc3d006e6e911e22b91cad61efd9bef4. 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/GBKQU2230702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ee6edf1e17f3f2db2213e1f41d8a3d234561dd084afa32126a049ec92cfdd5. 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/QMFME2192105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5023c3ce898a9676bc4313b62c190ba6a4690f4ed4c1e2c217474b9970460d6. 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/QZS642111326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2b86808de45c3869e97ea505cc60ed9bd716142e4690d254496850d34440b5. 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/QM42K2127531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263d8912fe327dcd1058428bca4734d1042c46c04b627d3a40fae508622c0134. 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/QZMHN2064030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593291bf55649fe4984db8f48280830d4477a99757a98e1de14ae594ae8d5eb1. 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/QZMHM2078257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56965f44dd7eb4517307d34731138084d8d4f63ab99d6b61079999c94f84c3b. 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/QZHN62052189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47d243919fccbdcbe854ab1880920362f4049048c47a4a76ac9283e9fd572d1. 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/QZMHK2272283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3079ecb75fd8f9583c5a6ab2edf1629c45a14a7d9113e12b434b317fdf2120. 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/QZS632292444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dba0093d984f17fae0cf97d098009a03d92908928ed177df0164694d86303a9. 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/QZS662212745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4bd3341bcb2723d33fda56593b81b69344cec471fdb006b47d7e5cf1627cad. 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/QZMHN2255683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195b76f77625431aad553f6d22ec2bfcb16a376182b6a6f2e2c6eb0c0cde367e. 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/QZS632260402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413eaaa75c1ebfd35ea4c62c152bfc6881e444272580d3e263e3fe917fc2fe41. 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/QZMHN2231692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1617782f93d68033340aebc8fcf346b0b9081c686ffd82b417ce6259912c61c4. 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/QZS672280176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f12e683e29ff9a9b41711996802d6f796d779afb66538ab08b72d4c69b8ae0. 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/QZMHL2276804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f15e9c6b380a3bdbbdc00138d1caf9d6ba06369e1b87f78a50a41f66aaeb27a. 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/QZS672204294.
Love You Like A Love Song (slowed + reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3b473e74d5c9526fd55739386c3d91e44c7e6b0e397cc6c69289f39052092d. 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/QZMHK2222550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d086700c6d06d743b8c62ca70804b0399931e31c212c4f5346fbf953e8f6487. 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/QZS672222987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bb1ec7196ce80642e9aafc7892cee5e732054c27e6e96fcddfa799beba2ae5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZMHN2285416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142d3e07a6386dfb67eec9d56ad2f8db3c14f66fbddf15b3628985d7a3657ec6. 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/QZS662226823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98d58f3bcc6344bd4e2be63e1b1b368b00df9ea8aea59503a4d52f63bab231f. 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/QZMHM2245909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0879111e95a68e98152dd19e718d07a4693eead06610c26d6f146337e8161f25. 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/QZS642209425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14240ed0a3ef92f50965d649decabcbe8b9354c981a2b350b767126f4f58b081. 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/QZS632207776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44816e88a129f1da67dde382c6a6b2f110e39779783b9c60e82eb6228dc3e2c. 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/QZS672260098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df8323a6321b889270a7c26151ac0b8bb758b97ef3c1de8673bf60934630ec8. 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/QZMHM2213992.