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 0xbdb5d0c24bf5b55ef84378002d7cfe6163c77c5770bdcc8a0e4643cd92e70eb6. 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/846a767e-7f90-4eae-9883-ff45c8fe9d6c.json and https://artists.proofprofile.net/proofs/artist/846a767e-7f90-4eae-9883-ff45c8fe9d6c.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 0xbf803c49e1f5dd173f589fdc00c3965f9e72b02db6579a604670465890981805. 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/ES5080600626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd126c232dd3491324d0017577cdd2133036f95197c26bc9f3858ee177e5734d9. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/ES5088500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f760927885ed81c6e2308a88443e2968481ad5e4415247bdc7638a96697b84. 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/ES5088305069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb48d45a84b09dc141e78c5eaa02e75bdc41c92b4094ee8976ae266a33a54d38. 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/ES5088205133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bcc9bfb8212c776005542febbc2fd79a7dc636b9cff67b564d33aca80aef14. 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/ES5088205135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a192e56d2e84a8672738b89672397656af7eba4b2d112a2bbf49005e290090. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/ES5088205137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc8d0eca7504fb1f9c82e8aa5839ac29d9608cfa44597e8a15aa0f75b1d4529. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/ES5088100244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91b11d5519a1ca303937f40edca07b25e791305e5dfcdd8b3105c5ddda7497d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES5088205132.
Grandes Éxitos - Edición Para Coleccionistas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a192e56d2e84a8672738b89672397656af7eba4b2d112a2bbf49005e290090. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES5088205137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16b10944336cf550facaae53437ef4807e47ed1d94c67bd134e07383eb0e86d. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:05:03Z), 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/ES5088205058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb1c6fba9503e8da13d639236c07cab34431ea0b1aa5e9ad5882ea8b8be672d. 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/ES5088205504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91b11d5519a1ca303937f40edca07b25e791305e5dfcdd8b3105c5ddda7497d. 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/ES5088205132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a0d8870999b07d5bf9acb15861c0c4f2c983b28693fd9e5a2e807785505482. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ES5088205125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80975fe0a6468814e0c8fb022eb884287507d3f01133775c69babd64987e32b. 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/ES5088208145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2f938d8b2f125e0b364524995823306316c6390c5ea3065bad9cea40e6f962. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ES5080600623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd126c232dd3491324d0017577cdd2133036f95197c26bc9f3858ee177e5734d9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:47Z), 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/ES5088500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386ff3390d20cd6b6d91ba579385a3e05c0944b57eacc1c89c53299dfd66e0c5. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:26:05Z), 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/ES5080600636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6608f39b85a137c5eb4873f7c029a535cb164a13c7a1e0e70c3f5fec71deff8a. 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/ES5088205131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf803c49e1f5dd173f589fdc00c3965f9e72b02db6579a604670465890981805. 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/ES5080600626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2f938d8b2f125e0b364524995823306316c6390c5ea3065bad9cea40e6f962. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/ES5080600623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb581bfd31590d663207bdcdaebf414a41f652e7002975c9c8f0dc8f0c3f43241. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES5088205057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91b11d5519a1ca303937f40edca07b25e791305e5dfcdd8b3105c5ddda7497d. 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/ES5088205132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36426185dcf6ff2706936e6ea113f60791b07ebabe029f7eacfc6f4dd7c2173. 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/ES5080600632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd126c232dd3491324d0017577cdd2133036f95197c26bc9f3858ee177e5734d9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES5088500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f760927885ed81c6e2308a88443e2968481ad5e4415247bdc7638a96697b84. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES5088305069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712d8917b9566a0851e1ae68567d0d3c1be51e4256056a92a8b7a77904aec342. 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/ES5088205134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb581bfd31590d663207bdcdaebf414a41f652e7002975c9c8f0dc8f0c3f43241. 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/ES5088205057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e9e276f5e099f017aae3d48af8d27706c584a60cc3068539be7a18391d1226. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5089900527.
Las 100 mejores canciones del Pop Español, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf803c49e1f5dd173f589fdc00c3965f9e72b02db6579a604670465890981805. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5080600626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08a1244d3249932f8409ae9ac4f24981d5a2660c6d92b742b389920a4e223ea. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES5088208144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08a1244d3249932f8409ae9ac4f24981d5a2660c6d92b742b389920a4e223ea. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES5088208144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf803c49e1f5dd173f589fdc00c3965f9e72b02db6579a604670465890981805. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5080600626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb1c6fba9503e8da13d639236c07cab34431ea0b1aa5e9ad5882ea8b8be672d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5088205504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d98c7e727a6c44e6948a17c89ab3eca08d1ab8793613c185ee940705fffe9b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5088205055.