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 0x48dbe22d84774d6353fb5c7c3fa8ccd4e2d71e02231465e5dd55f7ec7f58a85c. 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/bbf744f1-3ed3-4178-a05d-c8abd89fb085.json and https://artists.proofprofile.net/proofs/artist/bbf744f1-3ed3-4178-a05d-c8abd89fb085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
dissociation of sisters // wipe your tears
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 0x45a4fc2183c9cdc74b4752cf7f0065cacf9da6a782126dbda3a89affc77526d1. 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/QM24S2503165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1078ff00ee5ce4cb4cf65e899dd443dc3822c06ecaba44e862a8ec869067278d. 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/QM24S2503164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2d67ef6a175ccc5a0c026c2ce2883d60dc557174ce6ff7bfb554af6f4744b2. 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/QM24S2503163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb648ff08abb8d43f5fff18d3f2926444034cb91544446ec12f7aa921f21a8300. 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/QM24S2503162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ad47dc88bc86a48c5182bb3457d1fe052b064b494bfd7dd96f37ce14ec3b87. 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/QM24S2503161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fef09c7a18e98b91d3f60f2852b2bf510e182db8b710023b5230e170dd42f6a. 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/QM24S2503160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7bc4aa110bcc62fe6f872b333753b79cfe1c1f5d7414a98e2c183dc2b61d1d. 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/QM24S2503159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf4f853eca68af4362f9cdd209d77692e1ffc420e037824c36cb5aafd9fa65f. 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/QM24S2503158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4572151358045f407126da039ad346eda593c714e4e78768470f850c7d33b9. 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/QM24S2503157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006371a9a0439380a1332f69f97b982ebac0d2bdf8d506f0258e74b864b4a021. 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/QM24S2503156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a2a43645588edc4da36348a66ce091fa945a86e3ec149a73e6cfa408aeebe5. 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/QM24S2503155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4506e7f3137f5a3b17730ebc003832b373347583c0c413812e59f83ba70208. 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/QM24S2503154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9967f34a2b762647998c2ec9824971d5b9a25ff028ddc3139aa4f4e98891d8. 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/QM24S2503153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3db136d2142244bd2778320de24ece2bb612a4f3312c19055c0cda206ce884. 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/QM24S2503152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8917187d07a79552e468a0083d0fdc3d2c73adc15b8957b976be92a5ac4bb186. 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/QM24S2503151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87281ed78de9c74f7ab25b85952a14e07d1579f94543b1c7ac622e2729e85244. 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/QM24S2503150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe797a3efb6d31608fb26cc13ea3d30ad7e5aace6cde97fd78db493171f6404b4. 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/QM24S2503149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fe9cc0b298e3e8454ef801113e7ee9b07dc090069069921d2b849c32d28aea. 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/USLD91752183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484967f7c55a76b5f233a9ec5de7ec88ef610707b259e65dfdb5d78cb6f3fa77. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLD91752193.