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 0xe39d1e392e4753c037574251d3f24171ed982c94d91fbb4b3ed19da7f9e2a2d3. 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/48cc2b37-0d3b-4a76-a36f-7c405c5605b1.json and https://artists.proofprofile.net/proofs/artist/48cc2b37-0d3b-4a76-a36f-7c405c5605b1.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 0x902e6daccf1027fe391702620c381e6cd231c5dc4533c30b806c0da136ff36bb. 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/CYA222200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc69c28cc8fd3bbacada906d402e76643b0de65b06bee4f28af50655dff2099. 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/CA5KR2165832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe00478b614757a33ee171631ff6adf4c2a68658a5ae4612e05d14e152455428. 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/CH6542342025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224f5c2a53fca5c03daa976e363b5dd2fb4bb082685dd2f42bf4f95641bc8ca5. 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/CH6542342024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c19bb8c900633034be9046431d7525a8a84b627e8a3588143985055b7927c1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USYBL2201344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3d38e9a7a15a8abc49cf3759ca42ad39e80c700114001bd5135f7560e23828. 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/CA5KR2199947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aebcfd193b1fb42134f5da4d0b35c16f9638a9bc76ae4d5f3334b6b2c830a5a. 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/USYBL2101531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60390668980bd80b6ccf7faa2110b89685b3cc6951aa2bd7df8aa8f3519532a6. 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/USYBL1900765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7030b221a0438da3e9d5751369a76df3aaff70a3053067193322d71e0ff67095. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USYBL1900778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac8d5255e6c02036664c8de976e3a7c35e256cfc44968b151fa4f75f471b536. 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/USYBL1900779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0b549bf142ff1e12d8b414c3c6d84eab5534766241275afd62a0fbce0155a7. 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/USYBL1900780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740f7307239bbe6e9c24ab8fcf005ff133759083199072566b969849bc6b4bb3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB2LD1900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9624def5a415d9bbb398a89d4d4243133bac3e3df3f12e035d2a26830cb8b9a. 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/USYBL1801109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491fcf2ed04d800f708ebd2d3f6b558fe92a18006c7510b273bedbf977f5ea9f. 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/USYBL1801111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29991b13d7a936f76b5a6d401b010ebd8933db093ecb2d1db32ad01b62e5828e. 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/USYBL1800638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9093b1ffb14df35374f86e5f5e450ccb0570508a3b4d23e7d8657a3889df556. 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/USYBL1701783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593c419f842ec99f2ca6608f2e2568ce6c432495454c57ef623e1eb10cbcfc72. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USYBL1701782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5c143927eebee37934f0e54bd0739a4901f9cb8ad95754c3430eb37e8b6bcc. 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/USYBL1700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78605a9990085f305fd636ce51ef3751e94ae79b98340d25727ffce093f09f1. 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/USYBL1700078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1997318352d1a75d385018e3e6fecf10345933961011472e0d5ec84d24c0125d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USYBL1700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1506a5bfbfeb1750ffae211385f600406a62f631b3ae43afb766a63f8b640f21. 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/USYBL1600667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1860546589660ef88593f33261db1ec16efbf4bef20831637b38544bfe5d6b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USYBL1600668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebacb38cd27d21d3802b08ae41f062b78f304eebd3b7a0cffaba2956a06cda66. 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/USYBL1600669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85312d34b4e25a76c3f1b8eece975ea3e9cb003aabb8a083c4601be386ae4f2d. 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/GBKQU1385869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc69c28cc8fd3bbacada906d402e76643b0de65b06bee4f28af50655dff2099. 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/CA5KR2165832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc6c6c176e5e849150e9af09cad5e459bc6ea8510c1cca1d1e78e6270a7c22c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2204335.
Used 2 Be (feat. Jevon Doe) - Phlegmatic Dogs Remix
Used 2 Be (feat. Jevon Doe) [Phlegmatic Dogs Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d76c18d18cac415b9dbca0f9ca87b94b0d639fbf4060d18679b284567765bd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKPL1788375.