CVC may refer to: Science and technology Compact Video Cassette, a quarter-inch video cassette format Card verification code, a security feature on credit cards Card Verifiable Certificate, a form
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 0x8d7d6a887a1d90520cee32a4acd110316aa2e165380ae4a4dc014e4b5af69400. 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/25285e57-85f1-4436-9cce-e07462cb857b.json and https://artists.proofprofile.net/proofs/artist/25285e57-85f1-4436-9cce-e07462cb857b.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 0x33fa529e25300b8563b5f76ffb87374060dca8f4898b04d8398f82fc086d4984. 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/QMB622220009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f1f6d1f64162816398ce97d68ab3dc83da0487444d4104b838b20e4200aa34. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QMB622220011.
Docking The Pay (Rockfield Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d61646acecccaeea6b495ade794b67d63e8726ba27b9e05ac65604fbcf37c91. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMB622300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cf601987ef822ea6ec0eab72c2bc89eed6d9f04af56499c4ae2869efb481d1. 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/QMB622300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591b07caa7b8ad7c3900f23a70b1ba76792cfc6dd13922e3415722f5601c7e20. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMB622300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf09f8dfe33d5d94b281efcdef34087a129072feddc2171a18c9598bcf8471e2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMB622210003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c97b7d07ffc18de8e69dda4521d0365f1f3e4ea6fb5a6ae3c897558331ed5eb. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/QMB622210004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19489c8f73af13c9f025e306bdf5507573636209726792db5a069648d0cae7be. 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/QMB622300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dd481827cc9ea6a82afb98ed2e7869bd91eacaf729bca176bcb53a688c02af. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMB622220015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94817f53e198a57460132abd9665cabd764a49f163735e8dc49f426e13d5a642. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QMB622300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8773e1940a66d7745e27cb7126ef3c201b51f19208726491c1555ccd05814df8. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QMB622300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a76b0f018bc16ec9760b5e1b0c9c6509a1769636ee17c59ec26a23c1c83b059. 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/QMB622220001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0a434d6aee786f2beeb5e35a34e1b4795aa32b439d4ebd5fa25cb98eaccbb5. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QMB622210002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a86a1fd44f25ccf2ce381688c06edb82c7dfaa6c601cdb48ae56e5932537caa. 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/QMB622220003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c35434ea6b6f7d40214ee863a3124b94d548602415bab7dde9daca1575cf88. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/QMB622220004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4660118eb060dd1c1cf439b3efc4d4c7e669182a0b8c9363e85b7de5d4447a8d. 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/QMB622220005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523310ee179d30af17e57c9798424a13a7b4426eba14c04e07d4ef91b2962f15. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QMB622300231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834385f73afb6b0c9eb45cf6a4998de0ceb60234c47ecf8a618271f01505d363. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QMB622220006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bbafb6733af0da25ca70ddaef797329dd69f66b6b694ec8d98f9e9ddc703d3. 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/QMB622220007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf575476f125daa9c7ccfb867200f394be0e416736440d1431e09b018d9f60b1. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QMB622220008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19489c8f73af13c9f025e306bdf5507573636209726792db5a069648d0cae7be. 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/QMB622300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fa529e25300b8563b5f76ffb87374060dca8f4898b04d8398f82fc086d4984. 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/QMB622220009.