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 0x3534a6270266f08392ed547ff9b0ea46092f9ef61ab578c7e984d97f5901c6eb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd508971-ce77-43ae-a162-5858e4548f39.json and https://artists.proofprofile.net/proofs/artist/dd508971-ce77-43ae-a162-5858e4548f39.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 0x1beaed6c41e4e1210e93d9869a9606bd5ff4b6ab49d7b282199f462338bd2743. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:50:47Z), 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/QZAPG1703502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8425114e7a932088f30c27fd302e13a977bccf77923b532dd66f9222384ddb0c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:08:47Z), 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/QZAPG1703503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd17c33a761dd9b708e4455e85b5abf3bcf0f068aa00c902ab1d536813ca74d4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZAPG1703205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0e2235ff3da7bf788cd0964525e4c8af11414756f792dab5175059d0c114eb. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZAPG1705395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa3f61424ba8ddc71e0489c6b8d2d2023e847a164b8310554554da71cfc3a5d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T15:00:09Z), 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/QZAPG1703829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a459711fedc38f3f4c8b398e2d3dc6aebfe22afa8b38a00a6aa399005f6f54. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:44Z), 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/QZAPG1703834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad31edd5125e8257f68ed5f8a6646fcbb3471c7fb708f0752bdfd8db99204d0f. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZAPG1706042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2976667d5864151cead87f14c8f03ad2286797519577ae83c1414a437c188eed. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZAPG1706011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b4647f4686cf04eac1750b6f94b3ee257d33cb86828f1bc7dc4c8cc829c803. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZAPG1706013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d7cf135dc248ab28094e1f9d62700b9651464af25f8be33e6e4f8a19b5496c. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:32:45Z), 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/QZAPG1707522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45b1d1ede41224e29ddd5d3f972e71b88581e4b04107f512c5a67c6e46c61d1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:57:15Z), 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/QZAPG1705805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b79761377e7ccd4699f21ecd9636208fe0d645ca9b69bf44b29308ef7485ee8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZDA72251025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e002b0acd08f6b8c806ffefc62a56bd61a65c10c4c9a9d0be70b1842268312. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:05:40Z), 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/QZK6M2299366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe332513fc29467d35f15c1525f1cf88da0aa5e57caa0676772c8c4dcfceecc0. 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/QZNWR2257151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729999780fbf3e7387633ccc8e64f09a043887caf7963496c07df8972d8e383b. 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/QT3EZ2414470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe817a22e0bfbe67275506264677da5de40bb8ce3f07c5689e4ee44db546387dd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QT3EZ2414471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c6c552508f7f633590041b2dbea1c57899d3f19e08d906a53dd07871989391. 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/QT3EZ2414474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe9f965fa07ebbb5bcef045adeb9beeb9c2836ba4b8f135dc1d2ea3918baac7. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:06:28Z), 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/QT3EZ2414475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5262b8b027610c47cdfb8823058b140a97c2ec8301ab14a32b1228d3325af3de. 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/QT3EZ2414477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c012718e664b28f6dbd77ac629a2061448d7db27b39ca63cfd2cd378f47ff1e. 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/QZARB1813179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55af7182a9f1d6816a3eb607c55e336fc8eb9f08615065d516e09682321932bf. 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/QZTB32291528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298f6f151e15dc857b07be501e860ab2420edb46ae0cce65cb392d1440329bd5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTB32291529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6fdc233b77aef40bb620aa7b8fc6165f058bfcac3695659a8ac807d2998940. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZNWR2168628.
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
Peaches (feat. Jimmy V, Eric North, Pollàri, Smitty the BG, Drip-133)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7989d8f23f54feee920c73ee2dd31c06fc1100e66f1bcbc964e5d95b35ce07d2. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZBRF1817225.