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 0x7baa887e58721b0c5baba577bc3ca9aa7d94a33e604b937bb65901e7103a3279. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39ba5592-7b7b-481c-99ab-c50777f6c276.json and https://artists.proofprofile.net/proofs/artist/39ba5592-7b7b-481c-99ab-c50777f6c276.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O futuro é mais bonito - Organic House Version
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 0x41ce8862da23728b1dc4b39d8ae8f564b9ff58c091d7b7a433fa0d702e8b6591. 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/QZH5R2000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa13cddadb9f4082253f302fb45c3b17395235fa68d9a401ee483fcbd715df2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZH5R2000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c567250f6b95a7893ee4718a99a5533b9e4d3d8f154911d45abaafff1a08e2e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:45Z), 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/QZH5R2000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188304fe321a6ead26642d04305039bf0b16501e57f50e84d14ceb83a6756631. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZH5R2000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae967c9990bbcc4cf176d442aa38a02f92088d3ff3fecbc655c540d06814412a. 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/USA2P1884620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd167f418c1e2eab35fb35ae434b40716ad48ed6489e537f63b4163dee45d9569. 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/TCADZ1876035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce5f67121831cd29835129c679db92ed63893e8eb7299d815da8fedc8cde192. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z1826243.
Cabinda a Cunene (Estray Deep Root Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a391522b455c28cf0d07da8a1819f37e47da83002cbc58e19c3a61602c852b2. 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/FR6F31921570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562433d6004d621eb6cf30c3e89262561da89f1f04864d08447cda35cf9661c7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR6F31921580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52edde96322722af94e0ce3cc19e49aab897bb6ba505204009669a43c1ce2de9. 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/PT83Z1827926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525e8c5e65b8b2a12834ff079ed78a92781a4fe94253ca05487c7b30f9b2117c. 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/FR6F31921630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906cc88a854e074607b1aac34edb1c120d70311dd9b0cd2511f53dfbc8ba1412. 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/GBLV61818656.
Alabora - Foxall Pale Blue Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75ee01e6ee6581e37103518ce231d638f12b567dfe00c3fec5997285463dbc0. 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/US83Z2038948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3b5b4ae5498494dfeb2bd06b93a1b6d11696c5798a5843cd192bb37d471b27. 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/US83Z2225645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d32012a7447ab2a4db5214653613dd1796157256d9fc182ce500ef4cfdf8b06. 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/US83Z2420572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312e43f4acb0f2726c2fc87c785d058466cc573a0ae0e6e0c306235355559e8c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMDA62524801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7095ccc7184fb2022a5ac50fc99e0c0129f40b316ada4881a958b8bf052b0d. 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/QMDA62524782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656051a8339409520aee31b5f1bc267845304cae137ccf2f8fb8fecdffdd1f9d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2525264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d65ef0645073b8c6829daeecfacdeac17357819e10d2d471128bf35735e47fc. 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/US83Z2512008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad7ba38799783618ad734f94bf07df385a601c7314fb2c12c33229e514dbdf9. 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/US83Z2512012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e20aa6de59c61ea090eadb10c7588ed0ba0430a3fecb456a750de12c7b8167. 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/US83Z2318186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f85c585cb218bca7d397c324e2faf54c817a80c157c530f6db0c0035e072cb3. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:36:36Z), 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/ITM382200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a31a3b550f1039a0fd879a42f3f510b1bd009bbef74ae7ab23ba7802c13e836. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2093349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfb35d4fdb546eb7a7b826fb01862f90840c1f29bfea3094a9944628efaa954. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BE5KW2500766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62439888354aced1f7e0883748199c4d4c9d32422c9ebb8a322c909c8583f37b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BE5KW2500708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15d308ef52280224ad90312872770a52425e681e6d097f66e6da9735bc0e958. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BE5KW2500666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eac4827a9fd97a2c8da23981acc8e2b86d6fd5785a18fb3eedf2376413a588d. 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/US83Z2420571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a98b69843e7d80cebba96f33cc026d79b50276085ff9c94892d3ee43fc76a7. 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/US83Z2400511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd768a3a72ed8fb8ea2fcd7122bae8f53e70a591285c469657fdd8fa0c329e1ac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2518371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d40d7a54f32ccc5dcb231117a92715310a39f71f24a735d08c5e1dbe7192fc6. 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/US83Z2416768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf67cd63bad188f80482000cdb2ba62cca7c3307e751eef487241ae7d6383e82. 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/US83Z2518373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a80c08e2e668c6273fa19271670ed84f37fa6918c305c181b53cf3c78b0985. 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/US83Z2425545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905a15f1c02e62e1d9401c288bcefcee2037a11acec1c914a729ebfe8b515685. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:02:26Z), 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/US83Z1795630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb6af465809577ac222eac5b2805fbab42c54e98624f499862fcf171f5fda3a. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:08:49Z), 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/US83Z1795631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63e99ca8690b56df9ec758e1edc4dff2ead477014d6dbdf32ecbb4d572320e6. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:05:48Z), 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/US83Z1795633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3432bb3fee769d6c35b73adbf94ad8b2aa8287bb4a7d0c090e52404f7a08c8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US83Z1795634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2faa5688bc3ebc20bebbfd70b73bf47f67057d2e3f5bc702b2d707daef200731. 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/US83Z1795638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1fb94b207fadb3046d4477910613644e9d7c01b426d9d39e6a32f4e7bb84b3. 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/US83Z1795639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676c190dbac6253cb55a21b003b060736ef87b71cc49f3bba128320613c1940e. 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/US83Z2503677.