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 0xd6149f62c749a06c809c1a60fdbaf071608d3ac955feeb3221f8115672483fd1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b500c64-3b0d-4f7f-9f0b-ec789e91023c.json and https://artists.proofprofile.net/proofs/artist/5b500c64-3b0d-4f7f-9f0b-ec789e91023c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Obituaries (Original Motion Picture Soundtrack)
Noises Everywhere: Field Recordings Reimagined
Eternal Forest (417 Hz Healing Meditation)
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 0x4797aafc7325bdc5d3186ae0ec46310aaa73cf175800bb684acbba6777813a8e. 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/TCAGQ2204214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7915dd1c434b8ceb6a39041fcc0c6c4dab5e37460e14f781d12b6a406bd09c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:53Z), 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/TCAGT2330226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8863d72ea091e1a03f507dffb868687abee86607b7672f2dbf196e6eaa24fe6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAGU2373024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a20fce60145934b680437333ad9054dcaeec07a3f1c54a592784caba31a230. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAHJ2361155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2295a5e7fda1a546a5a897cf1d13c7edc10a0b7450e4611e8921ce55f196e1f. 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/TCAHJ2361212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf11120d0b97807c6fde79d9c9d883e09f7dec34350997714f719dd0e3359c82. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAHC2309641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9f69874a3f913cf7473c5b6cfbb1b3447226d09b02262fa20ef61f5691886b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAHC2309633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5e29d2b38977d4724bc1de06e275bccd867abe82cd16fd347631c098ddad33. 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/TCAID2491781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc2296e07f419855b6830e4faff6a7b506b9fd79dd6e2b7a31ff972302ca5cc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAHZ2454469.
Endlessly Flowing (432 Hz Singing Bowls)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad032316fb511e732ae0d320e3dea01cee5b016ac11c184268aa3c55c611560. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:53Z), 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/QZPEW2504029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3591b04edcaf257bb7a2ee5c5fc5173d7fbc95f861af8ae6d264ce2006dbbc7a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:49:08Z), 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/TCAJP2564714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e802b81b6667f239edeefeb1ebdffd519ca1edb2774f68838dc55f3d8aaa8f. 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/TCAFX2132012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3e1cd111f531a1b6a90a455b1a835415b04b2177c9740fa9df50fbc0b71cbb. 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/TCAFX2132015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1009ba6732843fc852acd302b6b63730509b2141dac22fcd63e9f815955cb2fa. 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/TCAFR2143021.