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 0xe916d5f25538ee2d7ff7a3567246c8becbfbca254113b9e4ef88074755c12591. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aeecd6aa-c793-4dfc-b8b1-746f9c5a1f5c.json and https://artists.proofprofile.net/proofs/artist/aeecd6aa-c793-4dfc-b8b1-746f9c5a1f5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Artist Also Known As 5Star: The 5Spot: Futures Past
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 0xc62f5bd7633f5453c1fb495b2fcc16775ac56eee4543493362ddd2103d85d518. 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/SE6XY2198515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323508657f696d6d47044b1176e81d818be4fb1c4e2d3153fb86b97349c4f908. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/SE5BU1889285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f83a3e2cee3a82dd892d611abb84721cd0f619159d6d8e0d314906a7615989e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE6XY2198519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea755b8da8f8f315d7d3131035979737577dee66dccdf7e5eb2fef095e5ce16. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE6XY2198530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6831d78538138b8843568901be472b4935aacb67780174487a740ba9b60a0ac2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNWV2279799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52b3be4a38318af7a36969af9d0a77f627250d5f9159765717224e9f6bdf2c8. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTB82292317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81a535e1795e560e28c81f4a98032743ef3fc183b93b69ef998d9b2eaba42cb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:11Z), 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/QZFYY2577802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3762fd58c46cd41e1dab0a2b6cd16ac7130291ea44c2f7029ab1480d380e8c0e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:30Z), 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/QZFZ62585593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81a535e1795e560e28c81f4a98032743ef3fc183b93b69ef998d9b2eaba42cb. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:14:44Z), 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/QZFYY2577802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b05bf0fac320dadf3b3f552ad0d2e23d3a7739be222a20e5159406ba00e068. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN42580371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3762fd58c46cd41e1dab0a2b6cd16ac7130291ea44c2f7029ab1480d380e8c0e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZFZ62585593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc9f2bb5590539c23e6a946e63c0048d104896ce8ad013695134ff4257f3369. 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/QZHN42580373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0426d9adc24b902a148eae50f6f7b8e657260c014128090201c2d174a02e5e2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZHN42580374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb67215b62630f8daf015540aeea9940d6055d9ba471c0ba9300967cf796358. 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/QZHN42580376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beb16cc733e04a1dc40d907d2255d0a7a78000ee0f3b3cec22d7a24fe9bbd6e. 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/QZHN42580377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623f18168a00e0780fc71cfe1671b9beddfc6da402a392297785020da806ffc8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN42580378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978212203361a09343f60713070558d661c8212253d0e6fef84cef1f518b3cda. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZHN42580379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa438d3321e7e97aaf6adc17abba99279239b4c1da6fb0813a126da2de09c1465. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZHN42580380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c1a39633e20333e8d18842e9255e70692a6a10c46ddd95277bd901f6763230. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:18:33Z), 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/QZHN42580381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e364de99929926df3e5072bda2714cf94e012866c70f30da91d44760d43dc1. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZHN42580383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87810541716b96c1f6080347b1d94c9f4eae1d91ec4785e82c6d0f9db2c45cca. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZHN42580384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500079dc8765938f05e30c7a6b466803fbe61aafae530848d7eb618ec461114c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHN42580385.