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 0xebc81b2cff3733ed95ff3bb52bcf242336f8942c50dd652b3fc6f6355060d716. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0716d052-91e9-4805-8bab-be330319481c.json and https://artists.proofprofile.net/proofs/artist/0716d052-91e9-4805-8bab-be330319481c.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 0x6ac29dada4631dccdabce48b82b26b1a1497fb85bcf429fcb312701de84870fd. 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/DEZN82530121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35245ae291f207d984cd186eef09c91b6874eae70f524464efb802f6e1eb2bfe. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:34:24Z), 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/DEZN82530268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ecc5dc2b7def60a5f035a5ef011f9b9910574d766ee95fdc8b4d7155fecef6. 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/DEZN82530282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00b113396511c4a8b1f52b28f16b70f4894008e395187f6d98d203752a2e48d. 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/DEZN82530544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db6d4a29e1b7cd49f918077a76e0c99db49b0514a5a0b81ab80246af13aeb27. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEZN82530420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ff95099e9958c26e5baadc25732dbaa1d571427e1cf547c541b7ac7cb2dcc3. 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/DEZN82530587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab1e43c53b2f3041d5077db50339cf475e02bdedcd4498502e279a315500c9c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZN82530459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2eae52fef32e87c3c0ee3154cb5f9959e445b871db356c659b2e90bdbfd6cc. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEZN82530247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6c2bd84144daa2351ff97a5801346aa765dc191b13335bf8eed97a8eb1c008. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEZN82530102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd183205d0a270f2275745c7c5374178191ba7a43f39f0388f43153e610d0de. 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/DEZN82530110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa109ee760510e2a93e32a1f7989faec70e31604fde4acf2706bd4993176bbc63. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:49:54Z), 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/DEZN82530719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993e380e0e3f6eeba757ed5f4f1f42b7b428c0b9f6a9adbf6fc28e91f61bf8af. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEZN82530409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcec84d91a9e5596bfd1e860265b231a2895fc33508028383b506b6c12fc4fd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZN82530398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413e09979cb1a5486accb0a3e4b281eb5adc62815fe81c36eb3e8e71e272db23. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZN82530424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95578725b34f5fddd34c3d4aba191d74df457339d4378159941f2ed9fd3ab3c. 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/DEZN82530467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60702780cc18a399d69f770b2c7dfdae41e155bf6886ae8f760f0aebfea2859d. 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/DEZN82530699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e25aa4a0efd11fc232ce864ea44075cb9a64bd5ade8ac6c23743f7a2826167. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEZN82530395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc89fead9a2ba63c79529cb4c58de3137df1bb26d7283873623e89d7af60f4c1. 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/DEZN82530087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895718ecf4d61ca21fd9ea5ee6e8dd5a5941983c52a80bcb46d77f1c1ab654b6. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DEZN82530613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dbadaa4cd1604e7e2ccfa84c8b4f7034cada12072447c06cd71a4263bdb92e. 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/DEZN82530281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04e16bace3b5a69d76d395e1a5e4997ecf8c0c3d1ccbb8e589155e9127fdbfb. 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/DEZN82530099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bcfd2c8e666082019f4a8c9ee593fcebe9fdfabb95b6fbf40f241e45e67d2b. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEZN82530517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25e87f7d497937c63eaebbcf06c26606c37cd571b68025b55874a16d1052d92. 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/DEZN82530506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5424c98f893c6df72f395fc4db3c90dc6266356bceb5d879842622d62728e79. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZN82530545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23fdf035ddbc892771bb1ee221d03f3df1c9a284415eeff3f1f87a24153dea4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZN82530358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe309ce9a8fc57ef613edf6069d652c6a45e27e87a919b158635f0e7a12c7dc99. 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/DEZN82530440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a3637f5a42a77d209d0a9aec87144e2f39039f6bf764597252c96698e8d0af. 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/DEZN82530564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf87c39222fe3c2d500d5c3d86d3b5d4bc2108ab2e3e6fb753e5e270a255b55. 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/DEZN82530539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5e9ec326ddc2e720c63239a0b50a4c0bea6f5e59762343edd877a33e5c4b5e. 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/DEZN82530261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d6d159bb2d7ef6967f945016c40f63e8e59531d54ea5b30c6f6caebd3223ca. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:48:39Z), 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/DEZN82530713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ef74c0e234d0141bfdda06a3745d41964033bd56912fc35e6278875ebc50b5. 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/DEZN82530620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2efd41195d7cdffdede3b4a0c891e19e0207ca7590fc078ea94586e642fb35. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DEZN82530434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5344962af3445b6f867b582f5cd29760b88a1f108b54ff4f051555a9a42b2f04. 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/DEZN82530115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed481072f2382974510e31dc3ac2a1d7ac34b1befb86381990b4292ae62b5141. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEZN82530557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd28ffe465975897e729b8caede8dfe0594e7dcb031ccde4e510e07921bf241. 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/DEZN82530512.