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 0xc3c8faf929591a247ddbe23cf53ca914f0d3bbb8b0e8f592d8c5f3004036133d. 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/75d60aea-2447-45d6-b735-3be48a57c8bc.json and https://artists.proofprofile.net/proofs/artist/75d60aea-2447-45d6-b735-3be48a57c8bc.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 0xc92d70157825c09651fc5c9f9ca5512c980cb18d9c025e6fff7cd401e2dca828. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SEYOK1927516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b635702392357ff3aa2d9c7f0b8edeaee0e2f6557d676268d8f62df083f21f. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/SEYOK1927517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bd5d4cbee1e5109d78724b6bbf2ce3c061229750a8c19b9135ed961875f655. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SEYOK1927520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70eeeb3125ebf5b9d8e2fca4d4e992c6146a6bd226ee1fab10c7665055a0771. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN41961514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089e9a5549a908ae4ac3ce1f3d78c7f3a781fd043b43ef0e8839d640500bbeae. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/US2J72107802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fffad50b57b183a542f1c1918e31dedcece36b0bc7cb9b259f7c008e6187133. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US2J72107803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76616d3af4f66b594357ee65433315eedcf83b89b204275360e7f3bad50f136b. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/US2J72107805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1e1e2ac56da172a7a2c6e1857b50ec5e44f8466e8e29731464c8231ef12469. 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/US2J72107810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4127c9d12f616db93ff063a139fa39a8b206aa13c914d299a6b98e49212afa05. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US2J72107808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72c446b83e2810a25d423854cd10dd6828d862a5f82aa44bf1bb88ca5f942fc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US2J72109101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b2f9ee9f7b45eda542db03f112fefcf1744f58ceafb85f1bfe4ea432d4d316. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US2J72109103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f87f49a54c9e3f84b2596c8be4d1eb01204212c6106fb991dca3410a0e56081. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US2J72201208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224656835cf0d87752920543beabd1cba651e69c9ba2e5055519afa769a8abf6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US2J72201224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd841fc7fb6e7ffb64ee7484870c7fa329d2f578ab492918296dc61f49970fa. 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/US2J72201204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c2c1ac00ce39587bba7359d3f83eb61c4cb47de1c38fea5117838d715efbc3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US2J72201206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b3b6b64ea3eaf889300794fccd6bee28728bb4f4d918beca6e9a9c9c4d03cc. 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/US2J72201207.
Take A Trip (Kaitlyn Aurelia Smith Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eedebc88ddc915d47afcdc2175fad78b18d1b184699321a97c580b7ad5592f. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/US2J72403801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2147615a082b949746fd0ac1090834da001540933c0cf31fe9f929094bd44f8c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US2J72403804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94de3113651568426ae5462c9832deb1bc60b174ed3cf8a0756e645925a55c6. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:54:04Z), 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/US2J72403805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e02862919a57e0f7b3b049a0015142376d4e8f7473462a45d6117f7995b9e5f. 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/US2J72403806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288bae48426c997c797730b272d81587f2bd0a08df8e39bd21aa20172018fffa. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:29:27Z), 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/US2J72403812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bb10becb3e07e7069395c94a2c877c076fb6cb3154b61fc0e7e1a6951b98f1. 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/CA5KR2365297.
Everyone's Getting Involved: A Tribute to Talking Heads' Stop Making Sense
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b98bb0d7e752ea9ee7b91780ab67310fc05d1e466cfdb3788d0edc4e41e5ea. 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/QMB622402615.
How We Gonna Stop the Time - Brijean Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92990a9e2fadcb3e7f5c62d991768f3076bdf2f66f22b78c5dae55b2d3a5ddf0. 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/NLQ7C2300020.
How We Gonna Stop the Time (Brijean Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92990a9e2fadcb3e7f5c62d991768f3076bdf2f66f22b78c5dae55b2d3a5ddf0. 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/NLQ7C2300020.