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 0x327adca86550ee3bbaf62ef621b2c398aae64350d53c88d6856e4dc5794dbce1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b40b303-df30-4901-bae1-9f7c3151ce1b.json and https://artists.proofprofile.net/proofs/artist/5b40b303-df30-4901-bae1-9f7c3151ce1b.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 0xaeaca03dd84a3ff8c51c6ebbaa8375cb181aa9550693c4a871c0258e095e2b73. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMBZ92057525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9ee18633fc84bdc18c81c30542bb81b05b49c1b4d0486c4d2581c2f08d2d69. 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/QMBZ92057526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef4b78aa834bab743b2ae45bfaeb014710021c8e5a0d45a0ea940ddbc6f9b58. 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/QMBZ92057527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dd8dd7210f4594cd2ad3f1e41e7d909822352b5cabf791eda74f8c5dd68478. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QMBZ92057524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09744cb324823f90200d9d60914ec6f675d14aa9e2add3b9ffaa77dc080934c0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QMBZ92057528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f3f9f98493bb137418845977ae4f49d917267754f1350751a094135570c6ce. 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/QMBZ92057529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdba6a8b603783a1ab5a49e6008c6812fa0ace5839722758d024b7fb2724b564. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMBZ92057530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45feaee56641cc8a6330e3b627dcf2526cdc9c41e03d7daa36f01382c899ea9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QMBZ92057532.
Umi Ga Kikoeru (feat. Dove & Le Makeup) - Extremely Raw Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73619fc16b7c898998d636a96b7aca4374c092db51c4af33b73503b574558a35. 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/JPV231800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094d9e62dee1d013211541e44db3581da79235c707aa4ebe8a075de1913f96c6. 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/JPV231800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01a49226cdc5dca74dd32eaa8e80c151fa9a353d51e9c4f3de995051b1a329f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/JPV231800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eee5d66748b722c71d7aa088a8a21910ec6314a544c9b914ea4cf0268470d3c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMBZ92480030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da70bad39e4c93cbcebd57ac52808a8187592664aa204b230e852386cfd3a04. 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/QMBZ92480034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0159b2b4407a397e715ba1b3b8f37e912bc50dcf6677d3a3397555582ceb17fc. 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/QMBZ92480035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6a2e02c6ca5c38e9ad199d6e43e9613dfb774e8fd73f7d102047c240bc4b5e. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QMBZ92480029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf98a0581836657a4412d52cf89996f28c8a62f75280ee29bb592041bdcbe838. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QMBZ92480031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30cbd036532e2aa8c8c7bfee08c5d4a29a7aa262e51fe5e0e1a3ac3e4c21288. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMBZ92480032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9bcb40ba5cf056bddcf0860d8d760bac8f135e24840906ab02310082f7efd3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMBZ92480033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81ecc2a85e8beb7aca0c7f6dde02a67874444d226a624030f645fe424ec320c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMBZ92480036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba1c7c224e27b21362c0b42322393f69cde55705b8ae119e9e7cb48fda6e66a. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QMBZ92480037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be4f23e79cfc51f98675a546034845280879334714ad0207c4b25eb42edbace. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMBZ92480038.