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 0x7ac9fcc04f0de7fece77b6dbdc584c4f16f1f034c4377042bcb2bec8e6f85c6b. 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/463ee371-5696-4271-872c-fe421b50e3df.json and https://artists.proofprofile.net/proofs/artist/463ee371-5696-4271-872c-fe421b50e3df.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 0x42bc1572d80390e2b84b1c186c49ce6eb97abeb7345a57677987d1b21cc1cc99. 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/USUL10200809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc293c35e1858f9e643810ae8abe9c0e6cd36e916fbcc23e2f7afd833dfb429f. 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/USWWW0200295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94eae4bf5b4565c9798700428f0135bca3b8f2e3e2b187aaa8e03a75fdb937c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USWWW0200298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008880fe60c07925e1d973b010a40ab9b85d3f03412f903a9ca6f39b1b4130ba. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USUL10200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c68a41b4128fabf37f17c8178e5f58cc0630698c4c257653c0f4a503cef1f99. 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/USUL10200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492c78b4457169bad221d8e6364bddffff86b10e150faaf0e64b67291543a5a5. 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/USUM70604438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ed5dd41a6e2a00ff41bc27396247dcc7ed3c1e37bfd86616f33409cbd7c984. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USTCZ0964039.
Todo Cae (feat. Gustavo Laureano) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0797695deef4a0ee17d5b903e01d975bbc230677dd2b2225ae1efb0a276d18. 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/USCSX1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2d2a7f969958f43e3aefac0062b37b6c56ba176c803682b6b8a4051130ce99. 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/USCSX1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24e174aff9a8330f00d030b9c59b744e58fec92e7bbf7c6b85e8c0a43fe1648. 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/USCSX1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdb8c47db5f10fdd5871ac1b9504d65e088605d1199137ea4996a12c30c1fa2. 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/USCSX1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba977e7c15c9ae22d258f10155969b04f75cdbdca355bc5e5c01500d4414c0b. 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/USCSX1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea4134005d89107381fc1a28ab041686347c25f2411a31ccd5c4f3db02a8836. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCSX1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87b9ea5bfb4a309ad99919b2d02be0698784c4aa4d4401e1be4ddda5406710c. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/USCSX1200003.
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 0xdd64c12daee8142db5d446488674f983013f4c12358c1e3391d6c43cd26841ca. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/USCSX1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff92535284663a1a089572f0bee863b074fbd2a7569117fb040eabb3f1d64e0. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USCSX1200009.
Q (Esos Son Los Momentos) [feat. Tito Auger]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ff3fc1467fe19b5c9b20c8127fd2649aa8c647a17a26fa902de184f8ec184d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:52:26Z), 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/QMFME1541619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15952bad3443fde70abef123324f41044a6d47693d1cace4b355860af90e4ab5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:36:24Z), 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/QMFMG1535387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d210117ac37d7ca3e7cd931a9f9a13056c918fdedc9abbcb54d995e5c6b5b3f. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAHH2354091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a2b3bbff5add9f246b25b4d33e83eaeef990b2f3c63f0c33cef731e4a788b6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKPL1950055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181948f24344af05cece7ae3a20370a012bf2462cdfad2f3e599491f47084543. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QM4TX2366408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16a865479a8a3edb8d1ec540af4ad079cc662ed9ff7e7f3a09a27258e75d59e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US7VG2165795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c4a474c84a7e6bd8bdc0bde64a66fbffe7b6da3a733274ecf8ae9b4bd73f33. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBKPL2016568.