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 0xd2c3152af15d1d2a8f93ccbfc959b813a6d4c27f2b7b5ff82cd5ed8c482f460a. 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/46a4effe-ed77-4521-a7b2-4d1565c6738d.json and https://artists.proofprofile.net/proofs/artist/46a4effe-ed77-4521-a7b2-4d1565c6738d.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 0x2d625788213bf3528efb8ab041d35518218c8b5cae52333b0f5ff4bf3e8de84b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USUM72309538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58701059f0ef538f062856a269f6db4bf5611290405f43fd7cf0e08c94cf3007. 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/USUM72309540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4f3237212411b922e6577076dc50931da3d5edd8116bf17409c9c8e0f1e440. 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/QZDA62011636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e8cb7c1d2d7aff3220d27df9669e6bcb3ec35f9e3462bcd0a3671efe00213b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZDA62011637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165fe0868e68aa883048cd082dfdcc17d100736992e3998b99381f9485785d2d. 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/QZDA62011641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f065a5b6292b176b30f3773dc623e30a789ade5678137b946bef502b425568. 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/QZDA62011643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace093c81337f6f2f25ebcc2cd522c546a6de7c5340b34a7896ca06a89492147. 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/QZFYW1921712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed1c82e17dd82bafc11a38b3db51871abb7e71a95c82975d95e08bc87ebc5e3. 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/QZFYW1921713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b4a872679d3c1535cd5f32ec5cae397c141943934d9ef275dd61413dc6613a. 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/QZFYW1921714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1416e929ca8cd997bb778536acdae1566680a350a24da18926e8e01dbc218b16. 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/QZFYW1921715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfe1054b4dde42ba06d854c874f5dd2edfcd08ba44df442e25678ac3d8d4a0d. 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/QZFYW1921716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042bccea550da09d2929d1c20109f91f3923cabd519e3a9f93f7d6f6114d36b4. 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/QZFYW1921717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2ba82a2ffde4fc61158271e5f0b094d470b4825429798442b760c2f597a08a. 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/QZFYW1921718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4e4f0948de4ec9c2fe51f9525bc853388f1920c2110f3f8dbe3f7617a56412. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZFYW1921719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c0481b9ee07137d7ab6aa95b0b3a3d8c9a625ea96699cb2d7a2aa15c2c7763. 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/QZFYW1921722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528e5ec8d18220c4782366284f3278086cd83f6d27a7fcae6e4f32281cd7803e. 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/QZFYW1921726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfcb11d08fb8f2f6c6bf6b84ddcf52bceba2c0e61ba064afde126f4c1bddede. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZFYW1921727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c21616e1083d2b6bb8f9bc795145c66cdbc57b21c6c1b4d86eb1e98827be08. 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/TCACR1691261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ea72b6a929468ab73b4f249c3a17c14b9cb1905c6bd42d7826599c3106ba66. 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/USUM72405817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785967effc5af260aeb4dfef78cbf17d32b2bf246cfcaf97e08170e41375c03d. 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/USUM72400625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227a9d1e7a98e29dca7fa0b6a711fe67cbf718effba86981f933788c69068296. 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/USUM72310932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59ce9f06ad5204f2cf8fbdf9e13b7bad1a4c17a40cb46fa4a92868c2110eee3. 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/TCAHO2309086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ebe67a62da1641d018e7a3f501694b7adb69629899466521f64e332c3f46ef. 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/USUM72306687.
FACES - but like the one the label made me do
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623f90492ded5464ef888571099a9d5914863194df1c6e1f009c5e374e221e1e. 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/USUM72215185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70ef2ac235f852b52c355294b56ce9113eb847c3501d09e9034dc25eba6279a. 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/USUM72208565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fa36e7d3dd769c02a8230648920118bdcaaef0bc2451336bbe27fdf42ff305. 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/QZDA52144049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a46c12cc7952506d85e1dc67ed7a1dbb2c4364b66e322ec5e75f423da3fc05. 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/QZDA42176480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d286af7bebb41975c03db880e6e99bee2cc7e3c55ac76d0dd908813a05cd9ff. 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/USUG11903877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffeac2c268e8db11f52d2d0fd648daea48b90d0008d603d3a469fe6dc8f99a8. 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/USUG11903875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a116938498564ff9da3870483c5a80a1ba30466515ef20dabb428984991fa1. 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/USUG11903876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3fb13a91613403b5a8ceae75441cf4ccb487206337a338924c27b57b35b9d1. 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/QZFYW1917034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017dd21b4f9eac466f830dc504c8bee109420acbb52044751739b8dc5cc11ba5. 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/TCADD1768414.
Save The Dance (feat. Bootsy Collins) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13584a0a39ed789f3de55153f0435fc9bb18404276a671c504ff6b286055ada9. 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/QM24S2101502.