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 0xea9e637fc81c1ae991460d22f10f8e40f593280b40fbb92689c7e07b7d3c56a3. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5a28aa8-fe3f-44ab-b40d-3005118ac168.json and https://artists.proofprofile.net/proofs/artist/f5a28aa8-fe3f-44ab-b40d-3005118ac168.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 0x728744a26e4073c0f920d97458c29c14c1ebb5f165e7be9312fecafdd64a2cc1. 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/CAUH72303001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7d08ee0a3e5b70c14d12278708e75bca57b7547067fde54309f9d1743d1387. 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/CAUH72303002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc154b8e326b755238ce86d6a03849378a9dc3f3f4db152a83127110efa5e1e20. 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/CAUH72303004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea3185e8c59fa9a1964e4b85a528c44bc38fe3870b5ab94cb8d578ac3722046. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/CAUH72303005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cb518458e2eb46bdcf5bcf6d8c8648b3daa8009c2c38d141edb363201c31c8. 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/CAUH72303006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37be9a6f9f59bf489ebf98dd38a1c24db969d8b3ef2b34f8e9f12a6c347224f1. 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/CAUH72303008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32370413d5bc090f965727850746663d78bad618f2a81962f5f84d5ce9ac80c7. 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/CAUH72303009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c964cd120e663c859f806defc520d03ac429748564236c468ebcc3a6918ea5. 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/CAUH72303010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118f267178dc4d27a04cc28eef6bcfdcf657530c3a56c02196ce609286003547. 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/CAUH72303013.
Je n'attends que ce moment - Version 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0353904f6bbbcea28f18209efc6453e8a4571747940f08be664bdd2cfbdece04. 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/CAUH72303014.
P.S. I Love Uke (Un hommage aux Beatles / A Beatles Tribute)
Des bises de moi pour toi - From Me To You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89a9a7d2036659d15b3c00601acde8f9ea8f40ae27b445a28e7b6a1c0d15609. 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/CAA2C1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009ea20661d47f50494019af4ec0bccea73a095dadf77a2b48f2d7b60717239c. 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/CAA2C1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eeea118561b04b2d6ab175fcf80398989b868f854a98935599abf8ed39f5dbe. 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/CAZ700701417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea9fe2f74b296fa13ad13d75e6bf8acd28cb9d41d8e3aeca204e293d3f7c251. 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/CAZ700701419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255c32a7220e390e313fbd19c26e96399cf61ebf89a2f0c51513cdf27bdd5387. 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/CAZ700701420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655664738002ffe95fae11f05788fe85452e6ac6f9cecbd9d745f9f9325ffa47. 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/CAZ700701424.