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 0x1a7ed3230eb5b607ff72f0c314644e33de9c8feb1e9080bbda56634ac5270a5e. 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/458561f3-2f3c-4e0a-8afc-bead95fad5cb.json and https://artists.proofprofile.net/proofs/artist/458561f3-2f3c-4e0a-8afc-bead95fad5cb.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 0x8e522da25950399cf2ef5922aea4c023be8b285c8a8411cf104555e835b3ecb9. 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/UKPNT1800162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a441d0a1e0524b477f5fedc24ee29edec7d9b8cf49ff62518223113e78f4fa. 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/UKPNT1800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ec72e4102c09f8742ab6590da2a92258feca075bb34d3049c79542f4cc16e0. 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/UKPNT1800161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a441d0a1e0524b477f5fedc24ee29edec7d9b8cf49ff62518223113e78f4fa. 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/UKPNT1800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e522da25950399cf2ef5922aea4c023be8b285c8a8411cf104555e835b3ecb9. 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/UKPNT1800162.
Settled in Motion (Acoustic) [Silent Minds, Pt. 3]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15aadb4fd19a9c7eedaf5ae100430e7cfdf072d9cb50492e4081f5ebb47fcaa. 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/UKPNT1800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99eac7b33c173741484bcc171da7210b4cec29bd15af486e06c1828bef0de53. 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/UKPNT1800071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd987477f2d5661e9602b025eab35f4cf4bca14cb18ce73033ac8fa2e8648fec0. 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/UKPNT1800068.
Keep Your Eyes Open (Silent Minds, Pt. 2) [Acoustic Sessions]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb805823de74f9eaa44d04a8dfc7d2fa37b37249443a07838722e3bed91cbb95. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UKPNT1800046.
Keep Your Eyes Open (Silent Minds, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a1c0bb9d0091fd6b885de5b9e17e497f7fd999290ab1b4e1877f36f1f28d0b. 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/UKPNT1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2e57f763edde61c841a43a2902c898ee9ea7f83b22249722b9a97ad166795c. 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/UKPNT1800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a1c0bb9d0091fd6b885de5b9e17e497f7fd999290ab1b4e1877f36f1f28d0b. 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/UKPNT1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe350a4884502df3b00af40932859ccd6b09328838c155cfbff3d17b665591a90. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/UKPNT1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0af6f2163d25ee37b0bc159d2c4f3a38375ec65ddb53adf075388775939fa7. 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/GBX721800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e6e98b6a48cb6bdff809a25477f9136ee8f510bbed390f512fc17e78617ead. 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/UK9SU1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867608cc2ae07d6d445907c3072ab88d947749bc5a172aa1bec7c407c7139b94. 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/UK9SU1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428d524631516287fc00e2a0c01054193c5ba26ac118387805a7d097bb3a9bd5. 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/UK9SU1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e6e98b6a48cb6bdff809a25477f9136ee8f510bbed390f512fc17e78617ead. 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/UK9SU1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0803b81cc110bbc386769a98574616a2f4379c2b00189e590d84cf103c378f4. 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/UK9SU1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2c4e1a3cc000858ce2b5bf16ffab92af07d946d43501f943f7cd2017f096bc. 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/QM6P42356976.