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 0xb53a30ac64b3b091c23c08459ec751bcab2d769eac4da568ca0b3e4cc9a9cc93. 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/05180ed1-56ce-4b69-94d6-67608d1dfe88.json and https://artists.proofprofile.net/proofs/artist/05180ed1-56ce-4b69-94d6-67608d1dfe88.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 0x5a7b6cf8b2af50f3d5f44eaa71079310f1dec7355a11b2ce12cdafbefa1bf016. 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/ZAF561600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6a22119f8ff2fec58b210344c6f75b4d8548def3026a6639aa0ef64413fb1d. 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/ZAF561600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fd0fe41af1a66feda43ce4afda837e61187a3c2f555cab5df6f358207182eb. 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/ZAF561600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d419696642948e6616d1c890430665a169c53b1fac39ba703d0df0a64796059. 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/ZAF561600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6f59bc93d908393411e1ff939473ef99b1288e32c1e97d0afc0424a41561cd. 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/ZAF561600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17dc593611fb39a4c7cb22d5b49dc16554f214179c387857613b221589bd20d. 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/ZAF561600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50860a8ff7f5222abbfa0c777f26280b4265da930cc18a72ef6d4db9a41c41e. 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/ZAF561600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696a7928a92ad5682ae495a49aeef0fc25aec34f3fa27f1e13d8c724aa6f1db9. 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/ZAF561800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a024f5d8f48ca5e8b2779aaebde26c50185f267da7d15e1dd7ea4aa30140baa. 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/ZAC012201293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374a8323adb16a375ae8a36efbb26f99dbd04eb6bef7dbca206d738e2ea9352c. 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/ZAC012201294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72baccb254e95c1baa559fc9ba0525ffea51e4c98729fa988f36163f5ecd9b3f. 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/ZAC012201295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dcd6b362de528dd706286b2847b1a790f5d97878c0a76e902bb35e1df0ac94. 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/ZA10C2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccb6c23bcaa7579a4c6f56647008c0ecf57709df777bdf5006a8bac7ce30fa5. 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/ZAUM72100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72792d9c9331491b2acaf6b60d9dabc5990c4765c8800ed54d7f0909b42ff414. 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/ZAUM72100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0091b5ce4d49173643bc699a3d6d8bf23eb0e2beafa0254ea9fce2264828de1e. 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/ZAUM72100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c3f7372e9e80009ea033f0752a452e2cb181888f74bc51cea33c92d8f8934c. 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/ZAUM72100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4ab4f4683d136800bb27f778cc654e0f6a85801c922c9c9f481fe1b899d01c. 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/ZAUM72100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c7c6865e50d10e30b048c3316ca171f03c0c0e89f3917af542d3a308517884. 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/ZAUM72000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f98530539f33ad048298146a05dc67867903776003dd444d647f437afb187c. 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/ZAUM72001030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d850baf1eb2dcb4bad701dbf79c13024b2f9d697b9732095af34edcbd67a00d. 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/ZA60J2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad0b43942d2530f562b74e66bdda28b9243d87a4cb9263963b7f2bedf14b572. 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/ZA60J2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7a1ac859363b2763850634d304d6caa9e498fce6b622bfbecf2e406d0cafb5. 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/ZA60J2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42b4faa93e3a81a05de76eb33b9cb92d490ba9377e9402ce40d149fd2a1fa2e. 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/ZA60J2100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88af734eb9cb142def23d206bb9370c53791d42e5aa8cbd9dabc714b62a69744. 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/CH6540878976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e17c9b221ee222f0ff3c48817c9cab3989ec32ae2d60d36af40b4c61af2445. 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/CH6540878978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7060dab80f79fc1acfa5a35fb5d0728abf41e35fced0e71b1c7cd6e22f2f3f75. 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/CH6540878982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccdac0f54274f4137cc339d2d420babc6f3601d8aeb6f156b646e42dc7ee265. 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/CH6540878985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2701d0836bd9e266ad8de3daaf0faee1eb4ee61682c5a88445dc7cd19c1a12. 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/ZAE222200495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e4664a2da092e6b329d929947a2eb3ac6fff2b979c5cf35ce1ecc75b7349de. 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/ZAW0I2000016.
Nothing But... Soulful House Vibes, Vol. 11