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 0xacde9824c121698fcf311ce28ca68c60fb41afd1955b3fa2e6a7da86a7934f48. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b017dc85-02f2-4de0-8648-8eadada08512.json and https://artists.proofprofile.net/proofs/artist/b017dc85-02f2-4de0-8648-8eadada08512.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 0x819634c3e4fae7297f99309b665141ab3042b8b4ffa07bad18e6ae66f6f559b1. 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/USHM21570797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229b493d123f8b2a92bbc27fd7934ab96a51c2322edc03e585a5d6803e6a5ae4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM21570798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e9a3422a072132a5ac4f4bd43fd0b586ddec8b8b05461781c9cbb628024a4d. 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/USHM21570799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3bec18f296ed556f8d36e6df0aec5c24550df5e6b3b5df54631e36781df783. 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/USHM21570803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cff4c98ce43af17d89074e05a0aea5457fbae4924b714fd141a67381d11dbc. 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/USHM21570805.
O Love (That Will Not Let Me Go) [feat. Madison Cunningham]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13b69bec8f4332bebe632da6651909dab6969edc92ff30ae151cfb74e285af2. 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/USHM21570806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a38e6706e411f1b193a0111e2102320b3e0ec932b57138aa47e833a4f07a5a7. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USHM21570795.
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
Fortress (A Mighty Fortress Is Our God) [feat. Scott Cunningham]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983a6d4ec37875e67259faa4d218e02ce0b25a36ea50de7cd906fb3e2fbf7580. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USHM21570796.
Rock of Ages (feat. James and Rebekah Caggegi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bc64146826f2665b96cd6885b753d3af9ba0e1d3e26461561cba26003e2314. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USHM21570800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ff3bed5d87924d06c8dd23daea27aeff403e2ae585e7e7b2806c394c8e928f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM21570801.
My Jesus, I Love Thee (feat. Sherri Youngward)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0365cbf09c7ca58a48aec93c38ef705bd3a7f9fd14fc4c01d118a309a37e2e47. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USHM21570802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc51bd78b81b172bb5233bfdcdf3e8c7041f5a02e0150dcef799d0d2716f361. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USHM21570804.