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 0x54600c249b093582c170713307c5849d9080e17dd866c92b4eb241576099b287. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e39c4b51-c819-489d-88dc-08b1e3d128a5.json and https://artists.proofprofile.net/proofs/artist/e39c4b51-c819-489d-88dc-08b1e3d128a5.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 0x7da52805618d4c30090fbb055930e84b735b571d281d0a8fb36d6648ea2bf9d9. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:38:25Z), 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/QZGWW2024004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3750799660cd45f64215c95dd12f13b9c73564cec8ade6d16e7fc51500f9e06. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZGWW2035742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0eee80f15e7a9234673e6b5859cbe93da86ad73c6d8d1b86f34fc6e3c93c2c. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:29:15Z), 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/QZGWW2052844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbadbfda9afba36bd8ffdb61fa6d2927bbcc62fa0ab4cffd10c645316a49638. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZGWW2072259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b66161503cf73f23644b7a50cdda28abe52f154570f6633c683735f3dbb87f9. 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/QZGWW2072260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7a35f66ccb4955d43a6ceff4ac189718811971e6a04cbe562e0a90cce4a963. 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/QZGWW2107849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b196b47e7310a244d29ecbfb9607d8e5a19e64fe3d714438d212dbbabdecb9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZGWX2003565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7357a164b858b1b3ae31bdb7f18ef6ffad121a8b3da7f38d753d1144bee795. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZGWX2041668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a5f623c0894a4014f1d08ae786201cf7b31037f233762817a4ee672fec8cc3. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:50:14Z), 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/QZGWX2081966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b5c57b4a6a750b4716bad8bd54cfcc0bd71ccef34c3aa6fe7487e6d430a089. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZGWX2081967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7e4763b69dd45a7bc4fec902e1166660823c68ae781262cc7849046fa7201d. 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/QZGWX2130864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214eb7c61b6cf6a72182f1f749e0fb628ac66a1a774b85565efa637361b85dcc. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZGWX2130865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07228c7ea42f87f45f7ad0551bff5041dd15fa6bca654166d31efb250f84425f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZGWX2237524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f495243063cb03ca31e88beb2a56fdbda671a26d9c63e37812aaad68d5cf47b. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZPJ32118765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f95604701335a8622b1d0e568f7c5bbe7f8e5e11396b2fc317be1f0a1be7949. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZPJ32146825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a81373b849804542767bb963895b582677c66c4bc9a1a0adb82c9b5c3d30ae. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHNC2300169.
Hear The Roar: Vocal Trailer Hype Anthems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10b56e81e04c25d73faf962857efb0ff72bba26e6e4e7549f5285ddd1ca5917. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZQ882301691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29be3cd98b2e9bc0857993c7ed7d81708db29675e150b22f7fa062b303556767. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZQ882301694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff850ec7fa62d006ec8f162c62dea974be5da59adfe37b7cc8bb6053b9713b9b. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZQ882301692.
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 0x0656b51c6465921da60605a337c24094a716a7569b2e85b919b2d3881154e2a7. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZQ882400926.