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 0x4e5a577a086f47048412ff1c731bb772a9464d8ced18918ef2b433624874be61. 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/c719f5d2-c7bf-47fb-9211-e990e0b6500b.json and https://artists.proofprofile.net/proofs/artist/c719f5d2-c7bf-47fb-9211-e990e0b6500b.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 0x8ab5297a406133568bad8b3a54301c3315b1f4391cbfc02a57ccc9575e345645. 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/QZTLA2445517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a094f25cdb21b0462c5a9a0857203fb12e77d720f43e016a575bb97969540c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2408623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0a3e5768394ac623e038d6223b7c11bd85fdd94aba74fac446da5340de14de. 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/QZTLA2473875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e08f2c29e70b49b8951a191537c6cdcd04c4591fcf31050a0f05f200ed9da4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2464211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884c2c0f4a174dc43db521ea2ecf1329bccaa6449d86177d6ac6ce11d5b335f7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2474069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9347d92759e0d8a1c0ce8ef58069005191331fe62c0553e3ba163547b4107a6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1418785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cd1d61460e3696f8f80e78303622e44943b2d631e290d78f0e1d3f5493d55d. 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/USUYG1418788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790e545264d59150a7f6d7e14f542d80617931d47d2ca9bd78efd337fac59b3e. 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/USUYG1418789.
Hottest In The City (feat. EmanuelDaProphet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a42f0f84add41beec7e8ed07f71c178541a2f3e5a21fe2e68f0d9e60ff3724d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1418791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb7d8eee5c728a601c5328f72acbf355bee29116c6d8c33a4bf452b6e1fba77. 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/USUYG1307700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de587f857436cdaac6ed1b67e819925f07337a50be090419a55e04618a9bf10. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1307705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75de33616889b5284d36d5fd2b361716ce8a3c0737bf0eb7eece25b3717c969. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1307708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807c9f272295c53133ac18e7936acf93bc92b3c26c1ac488ac4702eb4c107e55. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1307714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f1b1e24d33e49e39a9277e2bb9bc18090758ab59c6f26bd6b3fecd262f2574. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1204791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bfab7145c8dec8be0a23164f7d1faffdd0419b9fb9cfb23e0f57af84fa016d. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T16:29:56Z), 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/US25X1089512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68636c27e13adb003ed0f578e6550b49e919c5539f6e3cee6547ede057551cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZSYP2495473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0fedafe40a64204c25e153389f0f571a4423d7ef7c5a60fb238babf6525a92. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2431893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa159c935e8bcf4a87e64c8b19db57c02b5eeea8a3b6bf8eb2ba6debe8bdb608c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2444700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6205097748edd47c816025e0f5a821919040d0c20b868867d0fe25b72fd6899. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2463068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f21cd0df857d09ce401e84907710b40d3c2dfb5fd014446b72df6ea85337cd4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2444810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e6ebf7f9021c7b6baf7ebca16a474611a26c79feed2ef2bb29770d02942455. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTLA2489777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a696517e7489c4d0069e704bb3277e8d3ed102cb85b5a43a8c31952c7d12aa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZSYP2331407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb410be46c6b50d28dbe8498ae0a0e70e0867bd5b16c968bbf272b798ab452b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZSYP2348867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ebf221ce855197f5310fe288f5d976a3fc11dc14dfd685838282c36e67503d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZSYP2333885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb83b7e33dbe909adb1c86c69a36bdb7511c024116a2779a26013e4c77a02b96. 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/QZSYP2376669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5005ae28a57ebc4e73fdfec083d2a282a11852740852953b1aea35d99e6ff808. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUYG1494396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257a5c7cdd1689d3835ff004e960adfad36472af957dfff2a7ce6e174421d8cf. 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/USUYG1469399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406ecf21efd2aba901032cdc935610f52272c39f1452b51621772fdfc84df0ae. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1453207.
Party / Vacation (feat. Joey Vantes & Parris Chariz)