Jon Ehrlich is a three-time Emmy-nominated TV and film composer. His primetime Emmy nominations in the Music Composition for a Series category came in recognition for his work on House, M.D., starring
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 0xaba1120c27ff429345902c7dc57ac7e5987d32b2f4b6560ceaaaccd399ba5e91. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39a50344-4bd3-4a62-9325-d10b01d99525.json and https://artists.proofprofile.net/proofs/artist/39a50344-4bd3-4a62-9325-d10b01d99525.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Slap (Original Television Soundtrack)
Goliath (Amazon Original Series Soundtrack)
We Were the Lucky Ones (Original Soundtrack)
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 0x3c29c45fd5dac71feac4d60b4e3c3ffc17dd03c697c31322421c7f3151f2c4f2. 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/USHR12447999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc824ddb779fcaf5a853c80d0db867896129269454333ff85ce78ab2116b7a3b. 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/USHR12448000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b19d6a70a524a2c743d1be1daf28c47ece4015381b0286e64fbf22a0bbaeb09. 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/USHR12448001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64709bef2fd882b395ca80fc80c694f16b97761438c1c8e7c96d7d8a63c9116. 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/USHR12448002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d45ecd1598fa5f73e4c8cfd5746346df35cde0be0db30625fa9c9d43224c6e. 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/USHR12448003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27538428a2c2e76616a495cc052adac3f23a65fe86c977a9855cb6f773646260. 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/USHR12448004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad4cd8dac919563c470354af86098c609f340c9f1d8e92ec5c00907062e4684. 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/USHR12448005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ffe1bd50c889dab62cd5ab303e31cf010cd4322175551d364befed95777713. 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/USHR12448006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1002ef9814d5a696557028d174970479407f7e9dea481fde23cc12ca8480f372. 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/USHR12448007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7339e33e5582729617445759605720d2673e702c04a6fade2f74c082d3015b15. 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/USHR12448008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6de3e6ca736e5f60c0305609515f17c5ca7158dc1cddb60c2bb02bec7f3bac3. 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/USHR12448009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359858dee8497ef058b5b55353913698eae19146a5365d1acffa411f5274af46. 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/USHR12448010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03273a07f828383615e54bad310a28a6d1d76f94f28ae41bfe4f9a23fd16a8e6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USHR12448011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18aa873fccaabd641459cc5185e7fd2175382e9012de57c35777d686d40a6d16. 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/USHR12448012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b7d3e1f98140e6483d984e279d76af948289f49616b42e3693590dda5ce3de. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USHR12448013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0a48b05d4f3405055c2c550d7b13ca046da24d260c75c859b5a6acceddc289. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USHR12448014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d3f86f53ddf6824b06295acc9ff3f51de4ea92592bb18e8a5e3635a1c2a1f7. 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/USHR12448015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b92526b4da7515aabbd7352efee1a25e57214d03abc1e72a86a3c3dd5c93db. 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/USHR12448016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ac1efd430979f999fc817f967ac6ca44f3498ef8cb3e557ba6bdcf9b584eaf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHR12448017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ec027731d36fd68f5071bc2ccb158cdfdfcdb896e8605d6df1e8dfe18af740. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USHR12448018.