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 0x1dd447da7025225ef317c4843390219cd61d68cc28dd04de699dba9578c27286. 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/dc55393e-580d-4b50-a3d7-4b02f4f59452.json and https://artists.proofprofile.net/proofs/artist/dc55393e-580d-4b50-a3d7-4b02f4f59452.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 0xa982df7b4969730202944c38897d6f7be038b518bd6ad7cf1c1cce2f9a640036. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHNC2511015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fb10d20e6319a804e66fed9c1b700dfa6e7db7fd26507849834bcac70ff663. 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/QZHNC2511016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cace27f68f1cc93aaca6a1c49797e84dce24ae35df0fe56b11cebb586b753a7. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZHNC2511017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4487db6784f81471e09a784ff5f8dfc9b3df7f6d0f8b9250f2026aabdaf33e. 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/QZR8E2400118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2291d297b9c2e2257400e22b16d81d483d4a18ef3d93ebb1e34a0758cb9af944. 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/QZR8E2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80110dd482c828e9cef48a21ad4cec5e9b7fd823e2e8e0faffd5b154492ac859. 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/QZR8E2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153caabf1a47504f2aca036a4a6eec5e19f113f2cefcff217d18605f0c80464e. 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/QZR8E2200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbaaa823d7e9497849edb98ecf251e82f67bc7841ae3e006b5a5e4de23ba944a. 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/QZR8E2200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e981dcc7ffc6354e575b65eca4c2c138cecc4dc656907b19060ceebe30d761. 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/QZR8E2200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b56a33eb22937f2a71a76151438e2931c66763a7bdcf32ee8f997f659d8e6. 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/QZR8E2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d19cdae3fe25d731bca16a665b3b2bf8c6988e2a399c9a00a05bcc8356c9574. 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/QZR8E2200006.
Nadie Va A Robar Tu Gloria (Espontáneo) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504438a03d3cdd25d0fe000a950988f51d3920d9b50e09a37b3561ca9517d27c. 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/QZR8E2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7b7d84d4eb1ba390b3d72aabbb368c2faf02bfb20c86e3148c6df3a213a329. 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/QMF922050010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e981dcc7ffc6354e575b65eca4c2c138cecc4dc656907b19060ceebe30d761. 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/QZR8E2200079.
To The One Who Is Seated On The Throne (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504438a03d3cdd25d0fe000a950988f51d3920d9b50e09a37b3561ca9517d27c. 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/QZR8E2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80110dd482c828e9cef48a21ad4cec5e9b7fd823e2e8e0faffd5b154492ac859. 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/QZR8E2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e981dcc7ffc6354e575b65eca4c2c138cecc4dc656907b19060ceebe30d761. 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/QZR8E2200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153caabf1a47504f2aca036a4a6eec5e19f113f2cefcff217d18605f0c80464e. 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/QZR8E2200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ccacba16b1fe63e94d3ca355ff4424fa0eea0d1bf86bb19ac4c815e834aed6. 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/US3DF2231444.