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 0x5b2f673a069b2a32d1b950400ef363c8db3f2832f25c111f79eff873c7ff9b10. 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/48d99729-c230-4e41-af97-a1006c381761.json and https://artists.proofprofile.net/proofs/artist/48d99729-c230-4e41-af97-a1006c381761.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d37a8fba88f137ee47dce4c71cf7f299a53ff97fc3ae1e426f56a040719a6bf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CA5KR2422842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d300daff974ec781ca099efbb174d5d71df50ccabe2792ebb05960d942250eb. 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/CA5KR2430068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c59e182af0e350b2bca2de27c6c64d3cf10f39867fb48fb18d6cd40eacedd0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CA5KR2474197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c59e182af0e350b2bca2de27c6c64d3cf10f39867fb48fb18d6cd40eacedd0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/CA5KR2474197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8ed57cec903e2584e65fbdb344a026676d187d04e99f0787d71912e346dc3f. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/CA5KR2493896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bffee59e57a13a1f1c0b174a8db1784ac9b994159dc7af0594673f01ed368ca. 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/CA5KR2493898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d4acc988fc6a454c5d23cf8a76ff15707598cebc6b59dc4c174ff992e0c6fb. 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/CA5KR2493899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bffee59e57a13a1f1c0b174a8db1784ac9b994159dc7af0594673f01ed368ca. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CA5KR2493898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036473e76f2d8bc1dc0940f76f03b17310d6ead8795cd3562c92ed23d607b8e9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CA5KR2496961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036473e76f2d8bc1dc0940f76f03b17310d6ead8795cd3562c92ed23d607b8e9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CA5KR2496961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cf7c5cc26ef390c03e13d8aa287f54654da71f7ec795778b56eddace61e984. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CA5KR2500172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7516d12ce7af1b4e28218a7d9e7e4438d9159a2f0d99c528f6ca0b3989ded32. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:51:03Z), 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/CA5KR2508778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2bf4d8f466f774a38b7aeb349f001eaa09b0e16ed18048c5eeaebfb1313609. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CA5KR2510977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacfae214a74c7af3ad0b21e541556a465ae191d0b8f43242fef9e57c8c6e3ad. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CA5KR2510979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea64468dafcbfd0d599623c901973b4be4997135d95b4ab61e627bc5e4f23bba. 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/CA5KR2511091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea64468dafcbfd0d599623c901973b4be4997135d95b4ab61e627bc5e4f23bba. 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/CA5KR2511091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1edee59cf868236a6fcc510dc0fc028030dea402cfa5a796718a7ca133e4645. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2517130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1edee59cf868236a6fcc510dc0fc028030dea402cfa5a796718a7ca133e4645. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CA5KR2517130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c0f266010180688c52bf14b9f938d94357852c5e72211f8553ba42d4ca8957. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZN882555036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a14e97dab9adb576cf708f2210036239106f088ffee4d031b83742ea4fadcf7. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/SGB502504795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f00539051406e09f48a3e8907ba7277a6ceb310c1504769a892b0173aed5e6e. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/SGB502509727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f0521eca818ee838421017665335fd0508f8eec9eb53a89622bfa45357c75a. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/SGW502502242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a22d3d26478d17eed38ff8c116bea274e3abc5642491ed6623db0c6ca8b2b0. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:02:03Z), 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/SGW502501650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4154aa5fcbc868d69c4c8aea1976adf795e857ee4e5f3583a37e2a611daff0b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/SGW502505372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1896fd78c9f0899a247652e21a0ad0e2adae3a9aad6ff9ee88030a5012563ce. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SGW502504509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc7bfe1189f9b11fbe72808e81a637abe306be455ab58c8dacfbf7f2a0a769e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/SGW502501071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fe8a80159dbd7c37d2ed0c1781ecec9420fbfb7fe0677bcd33f44b35a2f47d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:19:39Z), 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/AEA3A2083265.
Everything Is Romantic (Fall In Love Again and Again) [Orchestral Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3062994ff270b357e2875399a2adb1ab76ed854872b43f4fa9768d934740d584. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SGB502543352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf60a7e8ce2b31bee34e593dd071ff22192fa90f55c7f29ece87602616f83f52. 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/SGW502542422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493054c72f06ddf8b7eb4cbc9528fea10446931b6297da1cc991b88d160833c6. 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/SGW502524365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f822ed1a7c0f6e1552fad021644e366c0da5857277f53685d39e13b01a53d02. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/SGW502533360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5cd16b6a34380b2c93ccb938bf434c89577bb8fd0da273823f3a4cbafb2848. 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/GXD7G2586428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc732846eba729757f47ee1003fe6c170760daa9bee0c14894b0cd2397d759dfd. 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/GXD7G2527545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef877bd7c8213ddd9b7ab0ae255db5e2458888aa44c8c47783bef92281339c9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GXD7G2554588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec9276e5d2021c888f349af539b9643abc31676b5771de779f2c7aa35efb50a. 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/GXD7G2580552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5972c76a08be602e0e9bd0bdb08f104ecb6327f2dbb7ad0420468df15cdea73. 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/GXD7G2534207.