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 0x4e4a4fc7e533e7e37dfe12645089fbace484ac2ea19c52524c0b663c5e42730c. 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/62ce5aab-1ba0-4237-a799-a1bb29a8980e.json and https://artists.proofprofile.net/proofs/artist/62ce5aab-1ba0-4237-a799-a1bb29a8980e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You're a Mean One Mr. Grinch (From "How the Grinch Stole Christmas")
We Wish You a Merry Christmas (Instrumental)
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 0x70bb7b2e0a3583bd697b8173bc6aec3785a221c44be72cce7f2171d2d69cc79c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZPJ32382976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9937ec17ba45c945df198efed0a9dafe47eefc7ebced51e51a271b2e9b5d314f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPJ32382983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2c744908204d41b22ffb47bc435ec2a376254645db382aa4ef4511d889e1ea. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZPJ32395242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83ebc6578140227a2b6a16729125a6bcf5dc3cbd5b3997405d6d4e7c59234d4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZPJ32395774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6092fd6d46483673beab648419c5121682a061bbb056cf939e21a42d02233704. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZPJ32395775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcb811a2347283373ad027647738937fa94fb2961456e9eb216dcdb0d0b87aa. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:20:01Z), 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/QZPJ32440236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec371ea241590baf68571c4d0235ccd095e97a6dcfe4bfb6505e21d4c26f8668. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32440237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1c38d58c19e044847acd4e1df00a90a56aed6c7e4679fb1c9b443956a12db9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32440239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bb772d9a770f7783ccc203e2fe8f534a1d6ffbbcaa13a0062d4cdbfe61ff4d. 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/QZPJ32439986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0313684ebda7aa35311b49734b40851ae0517504e5dbc9258e5447c0c3b07a0d. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZPJ32439987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6560568bdc8c43d7c14b714f7228a87deda374ef001b6def114764e34bd110. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZPJ32439988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f5b560f3dae1906f26f492e919a3f168c835187d6bbb28febcb5681ce32be3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPJ32439989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b2f86b2616eb85c95dc37117c34ab6753bb5f22a3a189c8927427da41e5724. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPJ32439991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69840e40871fd4fad3c2f4f62e059a687209ffbceb37e19461ccfa7c1bee93b9. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:00:08Z), 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/QZPJ32439993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91db50347b9c21aed8a79a981f55013f21d7242f8d84aa93c170a1b938241aaa. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZPJ32439994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fea6e97f6f275256620842e89f5224a89d02379a812d6e53225d89eb489229. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZPJ32450745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e24a48b02c20a893213616ca524a167b433804e3039e6e1c715659a8e12f392. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32450746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928be3a0285df56472b54f4cea7358b8e3d645d11c684441aa9fea9061d11450. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZPJ32450750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a915bc1066d5549e8a0d55e38c1f63027a4d4f03ece6e14ca41d8551025c50. 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/QZPJ32450751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d7287ac217d40cd7995fc884072ac2952b13607e986e8279c38efd54759453. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:32:37Z), 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/QZPJ32470055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3063bd6835459c886b0a912dd88c97018285955d62a9b68496e4a9bb42a6833. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:07:24Z), 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/QZPJ32470056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbdde9276f1be182d159dc08bfd5d66fb77f546400042381930c8d937ccc6a3. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:30:59Z), 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/QZPJ32470057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5206c9bfd45fa9587d2800c7ba41690fedc109481e9c089a8b0e929583a2e61b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZPJ32470061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f3f320e8a7a2e7142f0ef8be867d89bc36c35920cf87225e57c5136984acdb. 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/QZPJ32470398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec4d8774569f770b8a1e305a331597a70a0c9ceb13d150230201df0d54f2220. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32470400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b569dad41124f8372542ef57c33715ec3a0c3df7330ed40a7ffc4be8bd013e. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZPJ32470401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73bff31d358368a95233bc3c8ceee3bf3397c992ba7ada9734c5759a1fc7483. 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/QZPJ32472995.