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 0xb2fa7b05e80ad7aba872d97f8914c8806005ea0f9f2cfedf5d2e785ab2df9519. 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/8179493a-5cf1-4b7d-87e7-158a982d1ed9.json and https://artists.proofprofile.net/proofs/artist/8179493a-5cf1-4b7d-87e7-158a982d1ed9.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 0xfc58ff45a56f235fb07a89f703d6d26ab5783dbc777bfcc42fe3d08c56ef2d49. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/US3DF1800652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab497cdc5c03945dedf17a6265f53a33e2273d367ce6968c5792d835ee605bf. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:03:23Z), 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/US3DF1801443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82704e6ab85b7bc12eab8cc50d4aa577d5e0515a55989635a2c0e9c0b1ceb0d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/US3DF1814272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ff4360202a7ae25fee521607409d97362c35c939afbe519eee38ed5815e321. 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/US3DF1835543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bc8f4638850b34d3358f729f60a9c8f2c8269339af67b92856a3aae97622ad. 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/QZJ2A1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca86b52f37f9450d7ff0df26269f54aa584d1b68f1d837c38700b0235ca26b48. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZJ2A1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a24fce0ed69dd7db670d2a5f3d3ce4dee4ba5796c9b169bf7eb67acfd5a8ddd. 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/QZJ2A1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ee89f756cb19cfb92f8335cccaeec8ae1abd10ddd9a9e6c66f50c18efeb895. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:22Z), 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/QZJ2A1900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579c66d2e85c668dbc6b3eab92cc0954b6575be624b5a9be57162ed2b1debf43. 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/QZJ2A1900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52157dcdb0b4d2cc9d7a892944f93547eee1a49df16a75db6d49839774d1f3f0. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZJ2A1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583524a2806c0deed1505354071ef823339a87f59cbed52beb1197c3c811fc8d. 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/USHR22215801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8608357a61ccaad819c6f90b136f7cc7f1eac316ec8c5c9614ca9cad113f8e. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USHR22215803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210e3ffe86b2a8923cfc30bd65e0f4027ca15379bd74bae5ade011737f93cbdc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHR22315802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e06fb9564497f84e80a78387cd6ad60a662f128900588713957c38a9c28b15. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USHR22315803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c674081dade5d60d0a2f15e0d68003fb77072fead65e0ad7e9fb4960d949979. 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/USHR22315804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453da801116fb8f3b8fbd6505badaee8c99bf231011be124133949b599acc938. 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/USHR22215802.
cheerleader (ft. Waterparks) (Official Music Video)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd431905ce5c0821f8c668c901301f446e1fcf66da5fa269c955190eef1d8d6d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHR22415802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bc0527efcb7c4c38d262fb3a608041b31da87f5c2d5639377000ed8974e161. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHR22415801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fadf5c9cc293a45828980dac32ecddbf36d0ab9e4c84eb417a8a7412201e5fc. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USHR22415803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64064b7aa0d36b29c6ef2e3486a115d8345a853be0b4d483ea6e8ae0510bcb5e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USHR22415804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263015a0a56bf77b7ed0642126165731a5c181f5d3b53a68b3052133e7422c9f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:09:55Z), 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/USHR22415805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb964f3913cbdbbee0941838c79707642132cadc78317b25fb8f72d3180e9d4c8. 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/USSTT2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aabe2ffcc6caa7fc072a81a20d4659aa087f3ee86c2150057a028de1266edf5. 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/QZJ841900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b2cd00d4279adacd43d0ddc7207012b1a90d86b6fbaf5c28f6a90fdd613f8e. 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/QZ47A2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b2cd00d4279adacd43d0ddc7207012b1a90d86b6fbaf5c28f6a90fdd613f8e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZ47A2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d43d99c8071a2052ba07498c4d0e859a067f4433747f289a2c2f64a819e3123. 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/USWB12304861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2976fb125fdfa1af8c837416ab2023ebdfc2f675c94d632be4615bf1fff57a. 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/USWB12305044.
Endlessly Yours (feat. Tyler Posey, phem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7c8ca109dfa340bf53466b4c8a2b50f2206e735d68ed0d3ce2afff84d4b6ca. 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/US3X59405211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1c31cb603fc5ffd6d9a6379b8b8a4d6f41de1850b20c438112856a3e362eca. 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/QM3DF2220782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b05479b263ac3feef54438503e1933d318b4c138bc034271609f55d0d6d0e8. 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/JPT592110465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a24fce0ed69dd7db670d2a5f3d3ce4dee4ba5796c9b169bf7eb67acfd5a8ddd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZJ2A1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1c31cb603fc5ffd6d9a6379b8b8a4d6f41de1850b20c438112856a3e362eca. 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/QM3DF2220782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2cee976a3d901447fdeef9572dd4e07d4f28fb38df39fb2f0a816abb7ce128. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USA2P2325422.
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 0x37399b3d661f9769b59b09224b63a0895b3154b8c513a378379610ae5f140ac7. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USUM72104470.