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 0xe46d3856265d661250a5732f88e2f8fef2e8e463faf66db5fb81d6071ddfe862. 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/7fb537f9-7d43-4278-82fa-0a5fc5b6da13.json and https://artists.proofprofile.net/proofs/artist/7fb537f9-7d43-4278-82fa-0a5fc5b6da13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Never Coming Down (Virtu Remix) [feat. Lostboycrow]
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 0x7251a3490e65c81494fc21f8154aa374560597e4c48145841d90f959bb881b06. 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/TCADD1749074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067c0c844032c0e096619ceda1ebfada488b3fc02771eb6aaa624826454bd579. 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/TCADH1786001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51bd926a1ba0faa2d0762d25a9ab8f9a80912bfed4ad20716578244667c7e87. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QM24S1816890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bda27a38e1ca01572767dddb1bf62d3a281b0acaf0b328b51aad1e2d2977c9. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QM24S1823951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e87963ef82258aaa7b1c6d0fd8d06e28cb783120e9d30d1be3e84038196a656. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/CA6D21800400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ba929cc2f5192e0b22386e9188bb11ef8189e4a04496d9f1e7e349c3e00035. 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/TCAEA1974680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77eb3f8b9fa2c278a4ed14be274ded255a4d89f4b102ee234d40a25c71c20527. 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/TCAJB2490389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe734c670273339281ce3b601243dfdf05cdd331876e58c9bba25810320dac6c3. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/TCAJD2470455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601d18f506ce5e128b6dfa86cf0511e5c163643721a88f21d6c73f76438205f4. 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/TCAJI2567589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cab5ff5195d1e6e2d9a9f55635dcf7c22939f2e07d994fb01311c71a6a30a8. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/TCAJL2568180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3041098a0e18890f0392ba63b29658ef852d1d4ccc63a28969043bf1bf51067b. 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/TCAJW2505314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e87963ef82258aaa7b1c6d0fd8d06e28cb783120e9d30d1be3e84038196a656. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/CA6D21800400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69adda942add3aefa8d0a0fa23262cde8038a2c4f026a7c446e611e98dd4c859. 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/NLRD51632218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69adda942add3aefa8d0a0fa23262cde8038a2c4f026a7c446e611e98dd4c859. 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/NLRD51632218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b952cf52f90beea1c9a70e5e06a7be7e0ba431a5323919cbcfc0f516beab67. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBTDG1301514.