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 0x0d24505f938c353aa37724eccccf8b9bc4a9f5b4f153c868e4c571e37270dc9a. 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/4061851b-305f-4d4f-a881-fcbdc05c80dd.json and https://artists.proofprofile.net/proofs/artist/4061851b-305f-4d4f-a881-fcbdc05c80dd.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cf06df71a8d3147377719417e0d90872229a589bcd4b8cae8c19857bfc3c8b. 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/US2J71904503.
Touchtheplants Presents: Breathing Instruments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ff99bf061402034a8a4f9830832067fd2f4ca7dd952a192a3be5b406026f7c. 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/FRIDO2011501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9609e8baec35bf7ad864296efadf5aa648f1bfd7af3ee3e6b5a14dc3cb684b07. 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/FRIDO2011503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f706bf8376448f9def7606f3c99e4ea8b66fcea7e147ff77848de081965388. 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/FRIDO2011505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce3ff1ae602ae613bbe9f3b1a848c0def5f551e42eb3b451d1c38dce49633d2. 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/FRIDO2011510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd2017a4779bd8f09c6a6864833d1940b82cff77948421bcd0846c93fd64db5. 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/US6PQ2000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0bc953f0dc88d9475fd7870edfb71a5563574eddcb76ea417349fcf0fa0496. 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/US6PQ2000154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ae8e6ebf5f07808ab344574cf3c89d5b19c8931037298f41f6a5ae1e0c0c99. 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/TCADW1856544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642b7b4f63dcbc63617826719807d2741a1ddb82f1f2b28866d1a621288ede27. 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/TCADW1856545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf19effb3debd0612e805d389f14b4ab90de76dc55875da71f487f7a2085dea. 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/TCADW1856548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12df51ac68c062b611f22724eaf48e3abf95cd03ffa1e0c07abb0c76c5e6ea3e. 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/TCADW1856549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6625840e397ad00a301eaad1da7d08f5af9d14e4d9cfc78bbb5edfcf2b1a285f. 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/TCADW1856551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261bd547935ec70c298182af496f052fdf6788a51c84a96424bcf00a1a9b7048. 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/TCADL1836234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5438ee93e39802af2f67f1b4d852179b26b6565d913b6d09d7a44c9c3db051. 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/TCADL1836235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2b9e463f498150c76ce4647617dc0b9230a67fc6d1f5fbc1e4376e812e63de. 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/TCADL1836236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59a43a06d664211f3c0796b2221ad64411661f5269fdd897767f5e74936b8df. 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/TCADL1836237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937725c546e25b4f8ab87fb76fda96d3765b198b4d72f8eff1806299d436b324. 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/TCADL1836238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf1b7f3f2af2517684a4382cff958bd76a3b7a0c8687f9d39599c3439b5ac5d. 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/US6PQ2100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16e11cef4614ce0c9c8b980fc3e60a5b3188c7f4ccb7aa447f4f22e9624ee4e. 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/US6PQ2100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf1b7f3f2af2517684a4382cff958bd76a3b7a0c8687f9d39599c3439b5ac5d. 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/US6PQ2100131.