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 0x96184d64869d9f9f0434a7fc7c497984f25e949f0462bfe5c3ec7f30da591e4b. 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/7da8de53-f062-42e1-aa55-e5ad4902416b.json and https://artists.proofprofile.net/proofs/artist/7da8de53-f062-42e1-aa55-e5ad4902416b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Melodies For Young Minds: Kids' Favorites
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 0x5f14305878b7bcb3c8a5937b59c9f7b2a95ac23c8d0880650f4eb88436f87cd1. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZWFP2423144.
Heartbreaks and Healing Best Heartbreak Songs Playlist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefabd2fd7779c250186041b217980b62e7f823c4e6e70bda6ef3ac8af679cf4. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZZ7R2403066.
Sweet Love Vibes Best Love Songs Playlist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902a78ddc4860ad29e19722a7e69621825224693704cb8b35424404f7b7afe04. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QT3F32431815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f08fded27c71792ce28fe47440bc74035fb5fdda5e1f03a2cedbdf567fd4b19. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:41Z), 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/QT3F32433716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1754ba34b29143f05f3f333f6e8990f3246ef0e76c24c968438cca2aab996d4d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:29:39Z), 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/QZDA82517956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9421c393be6db6750b06b70dfc4d99f75bbb404227c37742949329c3ea143299. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZDA82501310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340ebca6579a397a55ad7b302a96a2117734054689c4b8b803d5415c4ae79f61. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:43:34Z), 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/QZK6H2536670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8761a66d2ecbd4970ca936807cb82cb04c9f516e72bc50b77d29ef56d3795e3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6H2539532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3261704546159dd1c17014fd02d1b1c8513e617aa6e1735d1734fd6213b74bbe. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZK6F2536818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0c2d92b15901fd404e034bdff779af3a039db45a244614079ca516a22df0b9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAX2510612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fef3275a626eb448c6d64bf3f74142bdc6ee377ee92893d150b88e3d7f59d4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTAX2510662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2610d0c252c1a9aff13a4e4e3d3f0995e5c23f7124a64bf081c7573e0454caee. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZTB52516027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52af248e76a06749ce419d7eedb511337d7c643619e89e7f858931321592b0d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:10:49Z), 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/QZWFG2527359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a645eff46c01ff551a1800b26a32cf798f73d0d813d9e7ee7b3f8b5a532549a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:03:49Z), 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/QZWFM2596596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0bddd8edcdd1846478b72ce6399d13fcae3d96655de975780feabc81c05bca. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZZ7N2569867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee71c2267d79cfb84b9323edf91aa4a46f7be369c840dce8b7bd3a8f771383. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QT3EY2586017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06b4cdffb17e5261bea89f2b4c8bceca257b087df356b1a340ab11a92c926d2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:41:07Z), 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/QT3F52514135.