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 0xa08ab1e8058201552f83e0ea8ae6ed1efb9d0fdc60a0dc97b73d6aaf7ecdf07c. 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/cbe361db-91d8-40be-9d43-174eadf286ea.json and https://artists.proofprofile.net/proofs/artist/cbe361db-91d8-40be-9d43-174eadf286ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Greater Things (Live) [feat. John Dreher]
We Wait in Your Presence (Live) [feat. La Rue Howard & John Dreher]
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 0x17518641fcc9b7cec25b48a2d321c6f90240511ee2915bf031cdac0c6dff3d3e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TCACU1652541.
Your Presence Heals Me (Live) [feat. John Wilds & John Dreher]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9458c458097da4d0bbe5fbce643b9e1fccd4cf4d852405817eda1f851e640cfc. 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/TCACU1652550.
America the Beautiful (feat. John Dreher)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefef5c25be9537400b96cd489dbfebdf8d4d012205730235df2c1b295055c31. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCAEC1984998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8d780019907466d4c7e88236d468a8774bfeb1c27ba8ba8484816318260d55. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAEC1985091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bac63fca2badff9ee1d39d28d4bc16d290e33f2f5b8320cfb09077ea79a7080. 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/TCAEC1985207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87e4ed3115119e5e6a8cb565fda7dc5952911c2a7cd1119a993efb5f91f7f4b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TCAGY2347044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85df8e878e2fb05dab14cb91b881349a5ac42ffe7fd6e153e1eaee49074c88b2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMQ3X2402367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa719a0297ce66c4efb42701fb1aa6025cbcd351a186223b4d4b36b512159755f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMQ3X2402365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063ee6fef4719953b0669bf2e521b4367aa7761eb443e10235fb79d77130a708. 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/QMQ3X2402258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd46077e7fceea4d479890cc3077fefa45d3fbb6f9bc127378480669e0e9a37d. 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/QMQ3X2402596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f7db4dbbc05b5e1160341da38ebe397a72e2c6d5ce384f0a3909c1f7950028. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QMQ3X2402593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe35990fc2a62c7cda1b96814affe7ac133c58b60861d79494c9544325407bb1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMQ3X2402594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2260a36c7679464b074f0b012945de301d65b184b3845146bf9d72313c4af5f1. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QMQ3X2402595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd46077e7fceea4d479890cc3077fefa45d3fbb6f9bc127378480669e0e9a37d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMQ3X2402596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc0ebfad44adc79144cb01d6c9c29678e02fd95f9a00d4c29f86c0fcb84c74b. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QMQ3X2402598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555dc523bb80243c07d5ad3dac8522fc3e73bd1d7ce80e192d296829731895f9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QMQ3X2402599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa719a0297ce66c4efb42701fb1aa6025cbcd351a186223b4d4b36b512159755f. 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/QMQ3X2402365.