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 0x0a956f2177e073033b01b68846a5af6ee8522c64b8db62c7df386615635b4419. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ddb8395-ceb1-46c8-a2ce-6e1fb915fa0f.json and https://artists.proofprofile.net/proofs/artist/3ddb8395-ceb1-46c8-a2ce-6e1fb915fa0f.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 0x78e47132d00a88f4122c0f36e101af44f51054e80c8924501b0c4eacff426d6a. 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/QZPEW2421124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd39873ee1c4ccf420c30e49361239731ea2f73df5d69513537aa3020aa0b75. 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/QZPEW2421132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf15dc6ef60950659bbff7d4c76c298bbdf683d821f7311dc30ded26df0f379. 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/QZPEW2421137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15aeb2e1f72ced9c13e3738f75e2a92e9e73d67503a23f7220d553c1b476306f. 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/QMANG2233613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb567c8b9e8f1f3bfb158e10d2c87cceac0b03279606cd3036289575e28848c4. 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/QMANG2233723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe059cc151d0e222a5e44ce3c0fce3f0c1fc8673330c31659179bb6a8479d468. 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/USANG2267194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8873519cb587aa79988d16fc9dd0730057480d1cab67b4ba04291d95be801c01. 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/QZPEW2421130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce181ea24b46aeee8cbbb05a6510ef6b0e3434b3db1980c150eefe4b1f658ab6. 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/QZVEM2383374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cef81d22da1575413db964c0490dc6b881e03817559859045847ce75e3dedf. 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/US3DF2411540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ded45d383257853cef884ba23dff08fded3b720ee4356c0f193a8c6f3cba4c. 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/QM3DF2183093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fed445a0f8a635b6147ab1dc821d328c61ac3c83fc16046f03646f6ce27c87b. 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/QZMEN2109470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c38b367ea21a173356573bcfd93b01fcf165b91c752fc352419d9d3b37a1aff. 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/USANG2103742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6db90ef21b2d8267af1402fcacffb770d1b48fcff1b65208db895a70e2ac411. 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/USANG2103751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fa39378b6f55cd75c422bd3113cea05cc8b5ade67ba7896ecb494a3b0e304b. 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/USANG2103819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1757555e4821d44318953d926b9ebc9b83085368ba4011a8ed10b32554d51d48. 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/US3DF2468161.
It's Complicated:Love & Heartbreak Vibes, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee090feddfbb3125d05407c0e6dac93b57f38a59923cdf19b8af78365a43fce. 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/USANG2166218.
Lifted LoFi Anniversary: Winter Vibes, Year One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87865c50eefd15706703445a093167e3ef3cf36ae24c4580eead5d3e6bda71d2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USANG2123722.