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 0x1296b033652bc3ad615206a25c1d7d9217e650781bbf87e69bd4acecf5b10769. 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/b12f914e-aaf8-4371-9d16-0b24c0913a96.json and https://artists.proofprofile.net/proofs/artist/b12f914e-aaf8-4371-9d16-0b24c0913a96.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 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 0x0332945f2290a846f31d02e77dd78954c7bf07e2eada858a609534ca07fa5989. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GX8KD2304895.
Pobre Robloxiano (Roblox Shrek in the Backrooms)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fc2aa16b78990b466af695a40d109097393ad95a5b6d09bfb574829112e4a0. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ES64E2347769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39b16f7ea95f693651bf3e09cb7a9d849c396c9f67103c3d975a58e4bb41a5e. 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/ES64E2483680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2a05033cc0fe71f245264aa897c50fbfc7dfd2ecb7cef02ad4cfbd5275a7a7. 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/ES64E2488760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030311af946fe9070188d5233f5c68281909a123c9137c14f727082ee02aa40c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ES64E2488761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cadf33f45a20142bc6d0bf3e005f5c6b7ada7dbcced58f7d057de438648754f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/ES64E2496042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251a95894eff74c9cf333bca200a04662c39542cab7b6d875dae8c92f2d45efb. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/ES64E2497281.
Como le haran las gallinas para imprimir las letritas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d285df4d84a7ac36dc711b3887c95fd9ff4d4172d4ae9aa5dd82cfede3d519. 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/ES64E2499252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233cbf0d9a0fcc3e8e8b140d0250deb0f554f6f3da4e9756597ee0de9b062204. 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/ES64E2417237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7beb49d3b27e2a0379a43b6aeb154f266a10fa8cc2d33f307ac1ec58a40ef8. 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/ES64E2419155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa573f68020baf7b80475e557f259232a1ea4a61ea0f8fcaf45dc4f168cfe701a. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/ES64E2502254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12112ff47cea982c1d60f1f0de3b409baa06cd5084a32a5bf41a2ec06d292f1. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/ES64E2503763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d1134d9f8b63a6105a017e08e982046cad816ff8c701dac045676fd8e208fc. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/ES64E2504784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fcbbacad7b85bf9d36c767a9b7870476a984f84e3fb08ee1d82a0d78cb84b8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES64E2509857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d291aba6c4346e1d6f669dc2a5224bc89b2cd540506c09dfcb3ff6b0c4b398. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES64E2510363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cb51094374d98a70b9871f90554ea1931c50537e4b1d8c801185d4ac6dc83a. 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/ES64E2512234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e018039c68c5bc834e0a16d2a8df25651e56ceab2a5ea427310f47114b8ca12. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES64E2513004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd79641a51db5bf6c93ab1577fde37a78bf346ca37edafe0a34c67e6ce945aa3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES64E2514408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231a64bca8bb90b380b11ed44763eb91fe89a28f6a666fbf192df569b8cad4b8. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ES64E2515822.