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 0xe39635533c421ae5da577ccde6ec684e68f7bf2e010810a1093bfd33777ee5ee. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6296d31-9edb-492f-a9ba-e7750e044b29.json and https://artists.proofprofile.net/proofs/artist/a6296d31-9edb-492f-a9ba-e7750e044b29.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 0x90e329acabf51bc0c3860d66359345f9ffd0cb87e5b298dca13ea290a1daf44e. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/BXCND2100592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f39ef835e79b082fd2dedbc0905027861d08aba368ed57b50d68190eb1ff4d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BXCND2100853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432d24d36b3fb3910066a67c7a2c1f79ad69955dee1228635ba8c24647f1b1fb. 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/BXCND2100859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de704f03dd53af45666e300829319ac3ac5343da5e756ff120cdb3eb0baff02. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/BXCND2101009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bde0456af9f92c2221a41665462a5ffe6aaa50a7af4addb3818667f58947c7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BXCND2101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b45326fe7cd6c40469802d102b515fdda1452a8b016e18b18864700ac785992. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BXCND2101014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf0741ebd9e1dd75de4685b9daab2a1bea17348cd6ec8fc67e810b61ec8a8a4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BXCND2101950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a5466f8fb40f4b15b439f97cda7b7ab894d4ce355eb9165ed36d7e6b9801db. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BXCND2101951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001d30a65854c4395d8ad5a3cdc25f31a73d1d7bbdac347ce87beb47d02cf7d5. 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/BXCND2101954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf0741ebd9e1dd75de4685b9daab2a1bea17348cd6ec8fc67e810b61ec8a8a4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BXCND2101950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a5466f8fb40f4b15b439f97cda7b7ab894d4ce355eb9165ed36d7e6b9801db. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BXCND2101951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c0c7717a4e2cb273ab8e9e3c4a8e09bbe00013b20470b01bd06c7cbb4a58b7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZTVM2264390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ed952d8e242a689bf34c6f7d96645e6aa20dacbdb24e15247a1ba22879e4b6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZTVM2264432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659ad0f278a1763b02f4c0eb2a4ef0b86473e2188200a4df1060c2f4a23ee58f. 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/BXBMP2300213.
Amanhã De Manhã (Amanhã Te Aceito De Volta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2f56ad44bd7c35dd086325967954b64154b7611082ba908b858cb90cf4e902. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:45:50Z), 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/BXBMP2300307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492cfa125b3367d0e26845e52ac30a44a3333c10da3616eefecec186257129c4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BXBMP2300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8736673bc7a2e84fdf87b0dc41c585a7b65a0ab7dbea78402775aacc2ef75758. 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/BCW2K2300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934521be95e1350773cceeeb6ef10b412d2f42e466ea5074bbb3bbf64de4dfe7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BXBMP2300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f4c1a7f280c13d65c3756a7ae7ac31e53c606a2a6fd5fcf026c09273444c43. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BXBMP2300392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf356a7beea0dcbeb9d320e0c877a95e23e98379fb61093678ee2c2db9bc7e2f3. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/BXBMP2300393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a5aae83892f478a87d948c211d7c15645df91e210ab362096c31b4ffa2cfba. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:37Z), 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/BXBMP2300394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e76e52d1f8d631a5f0b77072b36794e1f077bd53d4411d4e699e92eddf1a41. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/BXCND2301349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24679d571a3be1fba63c69481bb36871094fe27c3846e6e94a4bd232528c1969. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:53:35Z), 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/BXCND2400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121c2ecb7c5fb8b08060306cfd509cd7eddf97843813403966a8047f687e0e7a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:20Z), 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/BXCND2400627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68587a67e391c80f68fad87350704041784ba59f4c44c72711ad7ad1a6cc439a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BXCND2401264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cc9772fb2bb1306a678e6f47523d47fca0ce44bed555afdae897ef1296d1c1. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/BXCND2401262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c2345f668c32627b88e4e0c2a2b0c27fb18027d272ee3c0115d6d6e81356e8. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/BXCND2401271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66272aa45d0af3361c0d062bdc5cd1e1c309738d44f142a90ef2a9b92d15fc62. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BXCND2401265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653760dac5ab9de237d29a66b0b45dc4a09811b595a21f575541f3554a2eafdf. 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/BXCND2401261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08eec61ff042b21de1d5ac0609cf7f957299606d96d69e17b5c80c99c52cf398. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BXCND2500749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1032ffbfcc72eb2fc21ba97f9538de28e32f420464d684b57688ec8f8798f752. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BXCND2501370.