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 0x89f32528beabc39027f6c5c8c155a2a33c35d8c8deb9fb7fd85e40d565620c32. 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/dd8af619-2394-4e81-9d8c-82baf065276a.json and https://artists.proofprofile.net/proofs/artist/dd8af619-2394-4e81-9d8c-82baf065276a.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 0xacca99a582c0dcce18e84c5629322cfbebbaf5ac1e2b8ebbc9094c752ef2ee04. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:13:31Z), 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/ES71G2119691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541370431c780272578ad34b2834a641e650a2c568d80040270e43a6fd45450b. 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/ES71G2119699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc12fcb71cdea6822e8ff2aeb035d0e0557043938258be959a733af26a038ec. 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/ES71G2119703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76847f1ef4d18d3db68af956afa59bb39c3026562c4de0819c03b9f1ab9a914. 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/GBSMU3899825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf04f34343d8fd793b441a07c73b34f60fd0ec71496b1207a3401de6d7527e81. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:11:16Z), 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/GBSMU3899824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0fd54390bcd9cdf20a37b498ac6eaa4fe019d08ceed93583cd0c50da0a5641. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GBSMU3899826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97568c8d99a7561a9ab95c6eb8a0a2262e4c1df517a12c9835c45e58325b6a0f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:39:04Z), 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/GBSMU3899828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8a7d0648f345a5b0b8c404c1066faa5de7fb3edb0fbc687b1e3b3ee6ad68b1. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:00:07Z), 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/GBSMU3899832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542f2e9e90985fee0d7f5434b384692b9251c534c0db69c5b49ee1ac24cfec5d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBSMU3899835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a106df150662e956f508119912424adce7df98dafaea63b2fe17f685a649bf. 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/GBSMU3899838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7929f98651e125dbe32e69bbeca1e35211a1a5fb25bf4116d5ff67f8888a56. 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/ES71G1872208.
Lo Mejor de Anita Lucía Proaño: de Ecuador para el Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fcffe56e1b85fb2ac0305e9706c3ecefb88a9dce5c88d0d2bc0664e19f2314. 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/GBSMU3894599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1b257435f373b74f47a14c8c5f4086fa10491dc91d73b6ffcde2a5574f67f2. 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/GBSMU3894600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f49fdd147373cf05582cc9b37a54f4724ca101e86669a973ebede90131849f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:37:28Z), 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/GBSMU3894601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9ba5ff50b35b69787271a8daee6106215587166c26b54daba16855ad1fd38b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:05:31Z), 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/GBSMU3894606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf859788696900968b790519740c4e1a2e1d0eb8e477cc90fe1a17452cd91d877. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:45:44Z), 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/QZN882240458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc6604bb5aaf3f4f7ac2f414bcb349c502a3ac63ff3b7c2f75552994049b701. 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/QZN882240459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf528adc0947ac863747312c169b8cabb65710baef9137419603e31e6f485f1cd. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZN882240461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c40e9091afb6e9696e6f10c872ed9f3a1dc316df74f42ebf85a98b92e22e8f7. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZN882240467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6578e147fae13cd99a978b3aab37e3650179eb8dda742759f2c603b03816e53f. 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/QZN882240469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c846964508dda43396b7d746558352fbeb51a2a0745023e67161e40f312ac7. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZN882240472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab12b7fa6b082975821c1fc02239fbac7b57c8ea94a699cd13060ea8a9d73927. 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/QZWDW2231154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd257fc8df7962e972d77946a1dec70f9949859e291e8dcfcb50c04b120b465a4. 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/QZWDW2231162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeeec4b4719544a054e12867730b98dfa4752873ad4f5162024ec1a7955042c6. 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/QZWDW2231163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ceadfa31db02106644887bbe6c84798b9bdf2c10e32845c8c4a9f0d3282779. 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/QZWDW2224826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94ca7635198f48a5d951667506c86664c86d0fc1d7eb67854f56f9cd668d4e3. 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/QZN882306903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125f0f8375423217f55eaf649295cdfbb83571ec003ecfc508df94db05e62f17. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:32:33Z), 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/QZN882306907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc72d1edbe80bc13ffc0cafc108822c03cf22c589678718248f4c08ba82149bc. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:09:35Z), 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/QZWDW2336600.