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 0x20ef7a20b5d2c33763a9775bd359aeef7c874637a8830eeca070e344d2fd2c16. 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/827e283f-0f8c-416a-a4df-0a26146dce5a.json and https://artists.proofprofile.net/proofs/artist/827e283f-0f8c-416a-a4df-0a26146dce5a.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 0x518761838aac5b4970dd9659a40fad80854e2f68e4ea20acf562c9bbb9093b52. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SE6HN2461995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cabad883d66cd7cdd17258f5a8fabacd2722edd4b4787309be15e8537229c42. 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/SE6HN2461997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855c364473d4589ef6b86422f29e56bf7ff3769abee4773970b21c088752667c. 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/SE6HN2461999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5dfebe6af43505b250ea240c2eb897990b80a562a446252051248ed721186e. 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/SE6HN2462001.
we meet in summer? right? as we promised
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3292bc5d56a208d4a5754d82bc2f59344c77516a38b375e216433622e2be7e6. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SE6HN2488275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5827286038a4c47605c97c92f5759264f6691bf2431de1c13a38106ed69aad. 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/SE6HN2488274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09fed159155dfc104a3b74cf6bcc0ae2912c2243a824c8adf123e60c3420bc7. 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/SE6HN2488276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e40e55122b7ba335424c6230ecbe864e6752dd7eb3028dd9d47b1569611466. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:01:27Z), 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/SE6HN2488277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2923aad128bbaa5dedfe0d483d084a2ca894f65e8f8a98f6eb8bab84ad2f7b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/SE6HN2488273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad30ac0fb218186397fd082382ef174e703f8e482834055621ca44b040c592e. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/SE6I32419812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c9464a4506afdc9caca43344e902552097a71286d6e8d6557b5bbbf197eea6. 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/SE6I32419813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29c7a0171834ea34d69142fe7eb1a1390ade82e9c637489444bf0764528c5dd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:46Z), 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/SE6I32419814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30e4602443c94287f53aeac1fbc238c4d0c4389d229f39f54e813e909f01bb7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:03:47Z), 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/SE6I32419815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb785e921fea3672ba99aa3bd143283db4efd24ee7ed82ae19065240ee9d44fc. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/SE6I32419816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839d4f99fd174f4f706c7971eb52e97f8daa7986af975a3e571579595b02048b. 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/SE6I32419817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46961c6c4186524ecb6e949461970d69fb6c8d8cf99e6166bc33d1b26fbdca14. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SE6I32419818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bb765529a956f9aa37fb8da71f2c4dfef6ce721a83353766ba445e51ad0017. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:35Z), 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/SE6I32419819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd973f7e1ddbaabd3a9c10093a4b8b797426bc1dfcaaee6b5bf81a323b3cbcd55. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/SE6I32419820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ef1c5cc03c8c0c4445cb9201aefd65030ad4fd6a4f08319b664541a3c7be23. 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/SE6I32419821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f5c6abeeeea515728b7eefdf262cf9caa5113a75071e0adc8431c73b531977. 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/SE6QE2472106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa9f86fb1055a43598d8d0e0e0e6e2992f1585c42c668c14817877d20448ce8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7X2414784.
the last day before saying goodbye forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ba0fee9f573b308d40b602bbf828726eccf63ec6e4db03aedd1c62da8924c6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZZ7X2414790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799007307db0e68e929f2c7f0323bf5c87a4eb4eadc2eaa0f0273a263a9b76ee. 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/QZDA82576459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55574ddcb011ce6775a06251a243c32e6215e217cbec958130047c508e4e4bdd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA82576460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7ffb710135ea26e44fd06abf2bdce31a4a78b84a3addca6863ca8c02936ee7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA82576461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f315624b41a585f52409029e623d4f084a7d96f1efdae3d8322b55e1141055c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZHNB2506150.
since you've been gone, the world's not the same
watching the sunset in the park (the last day i've seen you)