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 0xbd996139b34e3121bd95cdc6ef31c664b3fe9803135aa1a4ad6f5961e98b3366. 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/a05265ce-6174-426c-acdc-40de0ad16cdc.json and https://artists.proofprofile.net/proofs/artist/a05265ce-6174-426c-acdc-40de0ad16cdc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Exitos de Oro, Vol. 2: La Yauyinita de Oro
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 0x201cc5faae061ac00e492db560dc7c426ddb5cdb04983697b719791e87880fac. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USDY42246153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ca158ede3f7162e5c813737ae19b45d0b176f4991553b1df29d6d21ac74aae. 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/USDY42246156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f11c896983a068f8e20441b79c5b6c244fbc2c43b6619d8bc9f4bf407da1da. 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/USDY42246160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13c812b6f27a62f1870ad73152e5c2c45f4ac60b0154cba1a128b130f98ed73. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USDY42246161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac414f6df43671d5f29b33017e933b1dc63761ce047a322c7355c4db8e23d90c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USDY42246162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f3abc16496bb3b16b7e74c053eaa06ff6b603f5b2041031c150e6cf057e82c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USDY42246163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe923c2df743876d4b9072fc1a08237c835af9c225b76e608683d398651e45779. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USDY42246164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a86cfa68daf0e33938b5f66a1cf507d41ab0ac4397a00454409ce5276925e9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USDY42246165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c87a07a876217339b2f521ffc93266df7f2460aca11daaa56697040fabc47e5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USDY42246166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36e2fb93e621dc4777dfe151bc4e762f587fcbe9d2909f01b0550b9ca7af72a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USDY42246167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa30c90843c3d44d89105f9a29bdba62bd0dc51dfedad676d8b8bfa2abb99fc9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USDY42246168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aca67d4befae67ac1178626490461e11c6d37f4f50d5566e2dcb63941b2024. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USDY42246169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e41f00e777fe838cfc4de9c2e2f665befcfd5a383465a3834cab832d6b8575f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USDY42246171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc407b93c0d9961d4313b44c24c19603be5f6a8013f49a5e3d07e9201a502e2f8. 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/USDY42246172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8d7014b0957431bd0735fcb943552a6f78e7dd1f27dbd123ab9a00e52c72d3. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USDY42241606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fadd5584ce5b0192486009cb2c586946ada70b8f0069271962d2f7ff97d75c. 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/USDY42241608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03b70eb510a0009693aef20e3dd63670237acffacefc1656df55797c52f3083. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZW9M2203297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0209c85d2e2ba0f81ae6e41cdad2ae2f6e7e8236f593009f07035864e42405c. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZW9M2203301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ed7ab65ee32777616b812c5f98756b7bd0924acb19e52fae5adbed5a0e2461. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZW9N2262045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289d946b6b1ce8ec6f387a4c12831ba4af8e8ac3eed5fc1b15d1cc6e926f6f01. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USDY42336678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dae4d43da32326bdfccb1767ee5ea1939672060113c3e1042778d9eac504079. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/USDY42336680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f20fd50353ee9dafcbad2b8225e28284833933dd3bb27d9f191b2e51c75b9f. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USDY42336681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5727960d986e6a4ccfe8540a667c22579ccd98d52ac7283998890ef6db8816. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USDY42336682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6a7db6fd75a24d86e34ac13fb744953e69feb0f315305cc0e44d6c36250032. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USDY42336684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75c5458d67c63a69ced80d22318fc560350415bed94c44256f9ec1cea7eaf23. 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/USDY42336686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f53545086e70d773b84546871fdd78f8ad57c9a3dde9af42f1a792df42194e2. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/USMH92363552.