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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacb09f4b91d94152af767f6e06db9335a99bcf6b0f52b3d224d44aec3fd53f5. 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/78456021-d9d6-4f46-bd7d-a94c62df4b3c.json and https://artists.proofprofile.net/proofs/artist/78456021-d9d6-4f46-bd7d-a94c62df4b3c.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e8fff8a17377eb746fa5cd05de3b47ae082dac0fdb3b0da8739123797a0873. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBSMU9343248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c8cbb44aadb4a9f417ce9fa09e4e01c565eee6d0a084aaf65e06df8ccb68b9. 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/GBSMU9343249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99877078b136c80c7efa5a7c978ae3ec7acfd74a983ffa39b238cbf1cb16d689. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX38U2205100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9e1a346ec3295b7b58065fed6d57334fb0f3256e2293c2033eb908e7299922. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX38U2189113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50bf3ba93acaf94731456ebe6e6c5001fffa6cd07ff57d449ec2e2967103119. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX38U2189121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06318db50603fd66f6713ac6deb040e66c952ad2e516d7bf43490ab8be9a9dd0. 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/GX5MY2168081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d5241614d508a350b22d4bc2c1563c2454bee62a02897b3f9939d0eb19ed3a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GX5MY2168082.
Advertising Background Music for Creative Corporation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2306ade6a42dbfe95dc69a323150bb1fe6d20653a4ffc5ea50a2c10235418c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GX4R52275320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94f77f80a9695408ff5fb8f67c06b201e524e2e186890b2bc4f9a6053db8f76. 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/GBSMU0004837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd99c18493b873fbe26d4ac013f2578f01d42efe5d65f6f05e95dd2370e8060c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBSMU0004839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f15cba626a7edab4b37d28f1ce833ff2e8dc826a707ee54b834f8e362fbf7a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBSMU0004840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf624973f37f99f4fab419419c4361baa3a0e5ecce10b7c38a04fdd36c58b5382. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBSMU0004842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1c433bd83335ac63d281f5d154a9c084e2d3948a1a0fb8bebc851a0d08cb40. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/GBSMU0004844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d8f3af24dc58a20901c9bb1473df70f3b8b6c2ceb5a60e631b9f711e01e46a. 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/GBSMU0004845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245934e39b66e98fb933fd9153e9cf22f267cc56e4d8bddd1c256dfdc528d852. 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/GBSMU0004846.
Corporate Motivational Background Business Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137471719d65de5b44e26283fd0f625b25b9692011c42387bd97c5ebd6a2664d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX3HH2276146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023b7e32ec205874651ff6ec76bc0cf7b0cbc78ed2f2b2b1fb7f1ab88d5369a9. 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/GX3HH2276158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0038d56c0982cf87a6f590fdaa81d653ae0551e99966294c02fd14df5ddc9c31. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GX3HH2276163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aea70a515a16fbc7871494c9349b52201f560662c5bbd1cff6ced06b1c99a50. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBSMU0080058.
Background Music For Successful Corporation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191f9bebbf3e5278f9e51cc930f6b4a4ffb41594ca0e0e26856f130019b12603. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX3HH2215525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da960694512f8209c05f45705de354316269fa8b1f14c93f6c2374453f81c79. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GX3HH2215529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d3986b818d59258af912f0e6680a1e712010a71c31a4f059b7fa6068ac9c2f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GX3HH2215531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46d6808b7be61136a4b190a6614d32b7a587b7a4575729aecd4a91c2afe7c51. 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/QZFZ42172012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e6fec180f27ab93751757d53a0b90b77da7f31a7626c45852ab203780c4fcf. 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/QZES62157176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979496301788a4b0b69fdd885fd1542d73ba2e149307b646e74d219bbbef5fea. 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/QZWFF2300808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efd0bf5a6c76ebe59c1ec97feb70798af3a3889474ae73fb523f70fa42aa69d. 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/QZFZ62418530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8364aea811683f12707f23ec55a7a35111228b1867783b516288f00fed505b70. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZTBC2323030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1045cf5d666ae1c8ad98bc066d6336261ba9d9cb9c35b200ae2ef4b4a75754f4. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZWFR2354513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda22487071c6bf22c4ac8fdaba558ece7e1039f845db640f00f045f1ffd57585. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZK6P2389578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503bf4235165ca8da9a01170ed6c91377f6c4dbda55d110079ace541ca28ae8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZFYZ2419349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea6d9e1a0e3ff3631ef51afd58a4a9757f5f97ecd72f647859cb158c497e179. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZES92440848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878dcbcf6ee9e243667107e3d380b0ce375e6cb1616220502436a1df5b62db58. 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/QZHNC2455207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3cdf1b382967a9f2d3c5e092327b6208d5a3eb5f0e67f7610ddf7abf0666a3. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZMEM2439867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0749462253b458aa60c0a818385eb4caa6f68f3271a36e68da8ab3b99034fc7e. 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/QZHNA2515809.