1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1ae63f877bb88e77a301cf6164ea271ff7a6e96b27f2fdc28e34fd78b6a04260. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40f28b2c-95d2-470d-8d63-5597ab02423b.json and https://artists.proofprofile.net/proofs/artist/40f28b2c-95d2-470d-8d63-5597ab02423b.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 → block OTSBitcoinBlock must exist at that height 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 0x2ec4e73d7c807724e0f12c7db0dce69a4af4f9830df6dd0ace3b4760e7e4c1e6. 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/ZADTG2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7af9578fcb8bb34c5f9189e9fad23ca5aae009a32071f31de5cabfd5646633f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZADTG2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd663782f07e65055ba569ab1c8d0745f512639b22c2f9f0c6329e796bc6c47a8. 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/ZADTG2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9d634673305fc7693a9d1baad0d7157dbd9a8f461576306b680e47c512f798. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZADTG2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f03bbcdee9ffd8b512f7601f7ae2b30d971deb92185546abb9e9e22c1d072ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZADTG2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc56335747e0f103693539464d6c0e3017a9add85f78955ae5c94fd03c96ab2f. 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/ZADTG2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3017c37cb87727aaa83242041606af34d89837142d43665103eb0d42d54ee38b. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ZADTG2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b1984069ba48d11136c4edd9638529891996af909f9b7baf4f437d32deccd0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZADTG2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bca852a1ff11676ce494741e7b2f16ff6ede5bf6fed61179cc9cfd6eb6831ab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZADTG2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298e2e6d479b9c2b2350c167adb430092cbaa8db18d8806bb1a3ed5624f4eb58. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZADTG2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca9fa8a1bf9b97c87e9e70861a3ec1a3a9d049692d19dc2b863045dcaee5d92. 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/ZADTG2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2c7347e2ec914dbd7c69fd00aea6482248b606dab669830c58d213471ed8b8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GX5MX2195726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f21aa17835a9ea5d14fc7dfce167c5a2a36882f82a79c666a64a54511b5fd43. 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/GX5MY2397028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9052107cf5c12f67e9e43fed105ce6043568aaeb9374d6fa426f72ec8bb124c. 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/GX5MY2371537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463d1f00b6668a988c9f67a097e40071f6f53bece3f223e445fec45d805a3e3b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GX5MY2320719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2aa39938ec7b7787fa02a40d2054ae13f86eb0f5bd188eeec4d947fc9cce16d. 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/GX3Q92430476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8dd25017b960798e359a2ed1bb863c338b90a3bace331bae6addc52d28e157. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GX3Q92430477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3e8efaf61024c9795bd55338242dc3dfc160652dd617b1cf4672d0fab50b91. 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/ZA4ZG2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37060b1a24b1ab708a57d2e117e88f45093ab3d9d3e70354ff6e3baa110f2c66. 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/UKXN22368079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b18e68328a8b6a53319a036b4859d2ac8e7b81242a2b3f2dafe5bb24282bc10. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKXN22368084.
The Municipality of Gqomu Heal Us Deluxe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b179a9c9ccfaf6946003c1827975b6bdfda3cb2e6e8caddcbdaae0414af34bb. 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/GX53U2451725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146b8b69d296e4c36557bb8ec562fda8e05d32c6ef62d1ef591191925fdd56e4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX53U2451726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d70cb0c3656f697de3187279d28374906eb045bdafa729c69320783a98955cf. 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/GX53U2451727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54554ce8613703eb356c4e712a7012b087f6551cf631cefb7792b89bcf96e333. 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/GX53U2451728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6aeb0375b2727223aa41e16bbdf43a0402b9fe93e41582a20e32a7551a1415. 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/GX53U2451729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0cde7aeee089b1c516d664a52d00035f22322aa01ae86ab598a0acc7b14843. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAUM72400841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a7691bce6c7cb721ee47e2dfa007b8727e613d7445eacb143dfe41867ef78a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAUM72400811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dba02c2e0a68da5ccb7ac96699be82976ba0abb812548311a3341244da86a5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAUM72400845.