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 0x316a15d94ac67f2b747234d963707201fe31dac90150591c3dce97b047de65cb. 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/ed7e9a50-7bc1-4e72-9e7d-236c93637266.json and https://artists.proofprofile.net/proofs/artist/ed7e9a50-7bc1-4e72-9e7d-236c93637266.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
(Say) Won't You Be Mine - Single Version
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 0x8d492fa1c2f8d79fc3668a732ee6b02805070f5539a139bbd864b67fa7f3e44c. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-21T23:36:55Z), 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/USPR35300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541c50686ca058e6c257c1b9f11389b50f1866c7337c4345ffa0b5cc35a0e83e. 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/USMR10300179.
I'm Lonesome Without You - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ce102f7b34ae18ef0ca3c5c7912313a0792d1c8e3e0d098a779bd49796e623. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USMR10300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042245b4a1fbe616c3049a994d3dadc70871b6facb347ea21d5e1f5025107877. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMR10300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb22128f9ac553f0b0c7d55a3d8628dbb690c34a123af4b2717820e776e7bb43. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USMR10200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68df8f2d2dbfa80aec4a82592d75e0fa949861ad824c366a9beae887ee8c7940. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMR10300173.
I Long To See The Old Folks - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196e72dba71ba5a1fdb3c45f450f0d5389ae3b883df28749682dca5c5e1106bc. 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/USPR35300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324520f112f48d3ecf8fcb0faee863ae2c36d77f990987cdd78ca776f4e015ba. 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/USPR35502504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a61c336b69019a6300d179944ec9f12fb2c1cd1e6d81b35f6b022a8ac08bb70. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMR10200122.
Nobody's Love Is Like Mine - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710daba34f6bde2b0ad3ae88911679f0a47a885f3845f8c92547510efdfe0451. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USMR10300172.
Let Me Walk, Lord, By Your Side - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05bdf50773d66f547fd64cb795fdc120c66ecda6d82a91666b7a3de7484bc85. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USPR35602502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3f0cfe5d2a44f8e68c7319fbdc5d178875452cf907cd346c1c23529d8e9148. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMR15400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa834844df931c23d08077d6e0a2f57e4c2f200e7aa7eb172475efc834f549e5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMR10300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224dd4d5b4309f4a37df13f799923e93444b1af6c9e20822a91c7c3e03eb381b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMR10300160.
I'll Never Grow Tired Of You - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7506d35c3367304b695721aaff19b47ca5a1907746197c6b454883bab796a39. 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/USMR10300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f267511d62391ee90a5bb6b65107c18dcce3cdbf52289bbdba5209778d1d02e. 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/USPR35400146.
If That's The Way You Feel - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a21c3cbae97a81b17c7c5ed9f31c624ab6eda2f7eb6f754b04fc7644e034f1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMR10300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffb258b2cedb14d66c7404cecc9d6cb83a26b713db3988cf4e2d7aa5e019d9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USPR35702500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e962056d6ebf4c6f4224d8970687d057dcc6d614e0a35ea75fcd1eb09ed2f7a. 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/USMR10300163.
I Hear My Savior Calling - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72b84128a29a4dfacbfd88ce8dfd9d93285decbc62fa47d21d522515e617320. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMR15500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cf0305c01da3f54885d2f2fbc17eff19b9fa4d7ae1bd9feefd5740ec164f69. 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/USMR10300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8b2aa5c970a3bac3f973abcdda2e30f3659d2cddbac5dd36a83a1b7686a1db. 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/USMR10300168.
Angel Band: The Classic Mercury Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc261fb140a8d0cb2b311308ecfe60492c711e42494c9e282c6aae05f87a5ba93. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBXHC2036443.