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 0x750f2b9f4c6f8b5ec0e5c7860fb544e06b1c86f650dd823e1adb7655626dd707. 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/4c8fde30-4e32-40c3-92c7-a1cc38a3d4ab.json and https://artists.proofprofile.net/proofs/artist/4c8fde30-4e32-40c3-92c7-a1cc38a3d4ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Destronadores de la Carretera Central
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 0x1affb6344c7e14a2fa39de19debc683aaa700830cd0e0c98beadcf53dbc7f669. 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/US7VG2126102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd29364d1f86ecfb842da898f829d4f06a60586deba2bd8886f2d9ba30a2b43. 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/US7VG2126103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08107814c742e603b5bd6d04bdfff97dcd936d0338d0b2c1cce130320f5fe4ff. 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/US7VG2126110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772b05ad53f47783b1d096bfdf6ecbb054b32cd12b4cd6874404458d327950a5. 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/QZGLM2189668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcadc2684ad76e90bb9d4ba5ee1857238030cdc2145c78cadfcfc36667f12cc. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZGLM2189680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe551baa321c1daab355032b69b5a60471a3f9027f5d1f48add8834f96a075ad2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QM4TW2487426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f6a6a02ac737d6ba49c8feccd2dfdbbdd2be0d6fef3f914fd3191c00091207. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:33:59Z), 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/QM4TW2487427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8bea729b648570d8a88970032971a6f22eb063646a8191452d61f54450a335. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNJY2157711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98292441d51fb2331a6a38a6a2a321efe087a3e1b44afd46873c35b685b97ec5. 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/QZHZ32243744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56784cf787649fd5dd8a4a8683c324575b7581e0aa76a2b0b91e87fe58bf2486. 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/QZNJW2355830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7da023bc27270391b9a1232b854b59c48b9c77d09f64815f16ce168b32f988. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:16:34Z), 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/QM4TW2487430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bff85c5ad1675af39fe8382455bdef3d79c052bf4e905dc7014c5b209bd460a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:55:17Z), 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/QZNJZ2337916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb017fb73cf3a8cbfe7230721367414845dd52ac9b0aa9a0928f958306c9c1262. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:32:02Z), 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/QZNJZ2337918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2977ed8f0510039195abbb9ed137de199e8ccbc0840229b10cd4a71bd526f52. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZNJZ2337919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ffb83d425b08b2c19aee9ce8d919c0f82e75e1585409fb8697528161b947d6. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:56:44Z), 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/QZNJW2355831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97df3e648a21133746032df48e4633cd4c2cb95194da7214ca96f3c7ac58ce97. 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/QZNJW2355829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc844c38ae62a9a6f31d4a7d7cda554f7b8610593211b60cffb295f871dad945d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZXLZ2348111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d27577a6cca285b04ec7088e3b4f842ba2c5dfdec91602e0ffea7a83ca8d9a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:18:42Z), 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/QZXLZ2348957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db81cc63a8e0887dd3b18725f9168e6846fd2e7278affaae2a75cb491b442bb. 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/QZXLZ2349323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2286035e3210be0afdbe30f75b3a57f66cbd22a36a20cd985716300ac68218e. 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/QZHZ32243742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75337d943ff258baf67b97333277c262a6e88fe5b7b83d3e01448d9546fc9801. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZHZ32243745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd897e9f85ca8f05a9297c0886042d0f791cb39023eaaf82b7588400445275db0. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZHZ32243747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa364eb6d9c0a7862c067ec66a6cb7fc9798a31492869f7bf863140eaeea9740. 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/QZGLS2345271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fa1ac725d8993acca9d995c6b99c04c3a04adbc99324580eac9448d5348caf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZGLS2345272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c486785bc9397905d0e05077d04fb26151452fa2a9fcc5e8cd00276df2d7738. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZGLS2345274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1f4f8fc8f179a638b24955fda3558d3f3cf43a648ee0fe2344754ec79a60be. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZGLS2345276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8255a6b3f4bfff319fe6e4bbaf357dda914041eebe84b3829a23ac4fe2c83730. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNJW2355825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e98a09389bce55c914fcbc77a63d74e6b5adf39c8e2b472e0f02925bbb457a. 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/QZNJW2355826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47af57e87763195b96ebdab75bcf1e86531e1f0d0dcd615d49d34cfe5777fa87. 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/QZNJW2355827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56784cf787649fd5dd8a4a8683c324575b7581e0aa76a2b0b91e87fe58bf2486. 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/QZNJW2355830.