right|thumb|upright=1.25|Lighthouse San Juan del Salvamento in the east (1898) Isla de los Estados, also known in English as Staten Island, is an Argentine island that lies off the eastern extremity
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 0xc66aa444a06f0a42ff6975f3683562248b37ede0e7805966ce6627a9bffac77c. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7fbd5ec-ac9c-4204-acba-adc071e758fa.json and https://artists.proofprofile.net/proofs/artist/b7fbd5ec-ac9c-4204-acba-adc071e758fa.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 0x2d445970879a1d7acdbf7739f9414335ce1ef7a1e246cedb7ebba2d425b76caf. 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/ARC571602718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05a05db4031b81437958099bf6c83bfbe41cf53033d2a974cec688660ad2d23. 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/ARC571602720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63967f85a41f06f26410a04402b6c46ad659281cf2bb84fe3892932ba83aa97. 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/ARC571602721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1dfb657995d192c15fd1558b289e002f3afc72d3e08897bf67c3aaa8f67d93. 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/ARC571602723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb55aef517be3a7c2d7c39f7e9069dd576ea16b1a0bd2aea29fbcf2168fc7c25. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ARC571602724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b54df30f5409b5db0298dffb27650b02fedfe98bb4efa98fabd7213860438f3. 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/ARC571602726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3377d7057bafa5c3732851dc23a7041988da4d1d0a025d8f34fb588c09d473fe. 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/ARC571602727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17380c4d760c3c6f851f1ee89dea930bc65b3b22c116498d8b6c66f523b4aea8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ARC571602717.
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 0xc2a7fa209970929364e373e166a4477064bfd08a9a49908fe43b0b164dbabeb6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ARC571602719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0480f9ce1bc8d59c111248f691844c0f726dbb34a03f5955c3be8a727fca1587. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/ARC571602722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7802c9952420f3510fbfb896f1d846cdc905dcab9226a3b9928642b5ddefc4f3. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/ARC571602725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e433d7aeaa79a4aa540caf5a3689f78c49f465f00470b25b4235124fc12f94. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARC571602575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e4f70c7abca8ad3130c66f1050a906b493ad38f114bf04c8392a7af1c34972. 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/ARC571602576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16799ced872cefb7ed083411ca2d4d926c4324ae07438e20f1ac99addaf8380e. 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/ARC571602577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b8accf92f7729b41e4a539fc5f5dade9f95e6c2ffa975522cb2619bacb9f0a. 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/ARC571602578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf081301fe95a43862d27f8b1d91a86a2646f7db34129203b492a6d6bbf86cecb. 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/ARC571602579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e383a910bf7d6821f72d012c3602dda6e66885a898cf0ed57d668f7d304524. 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/ARC571602581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3873bc38fc11d8ba22447fb29257868c4373cce7bc3788784fe391c2bb959a87. 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/ARC571602583.
Tiene Que Parar Ahi - Ismael Pinkler Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dab95e61e2543405de95c0a6b300572fbc983eb829f5ee33ed51d5a53a327e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARC571602585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58121b0ef3a35e6cfb9f75958a6e7344077be714312eb4e2c0d5bc70a3772061. 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/ARC571602586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4337c4147855c7672731cc702193faebdca1f8396b27e339c4846731aac04fc4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ARC571602580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc222e996f90794a60f01e05f2abb8f6f60ce1a939aa6d4eb891295a45ee48d. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ARC571602582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c4f4513703247a0abc08d8771afcb783c612fee7a2903cf29efceb55a8ac4. 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/ARC571602584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db7af53c96c2093f6487937ee651ac81071f43d11959ac4a6cb2c453399fae3. 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/ARC572001878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb786d8a7672b0e8ee79c49b0ac84c00b3f8ba2621fd790e1e5dc2f770fdd94. 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/ARC571900211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf344b7c735a1e2a60926ff0ea77afa6a4dcd898893c1eaa8ac8d513d2d19079a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARC571900212.