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 0xafcba38e177e335bfe6a588faf2c83f6b8bbcaf97e6b79d39b268e5206d55f45. 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/6aff9918-00d0-4d8b-bf33-9d536448ca9a.json and https://artists.proofprofile.net/proofs/artist/6aff9918-00d0-4d8b-bf33-9d536448ca9a.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 0x20cb48ec38b23d910a3b7bb352b2325cc04167678f16edcd681bc235ebfc1973. 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/USHM91480981.
Young Kind of Love (feat. Natalie Weiss)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072c452582fc4f9e0b69ac943c92d83ea08c7e8b45e9b27fe4a25a28f695dd97. 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/USHM91480982.
Show U How Love Feels (feat. Emma Hunton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6ba236e93f6a8405fca2d2b345d7f85290fafbfdf6e5e34e4fc5f07d4dec5b. 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/USHM91480984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2534614b57984e0ee830085c06f6d8e7a599c7d305a01a57bc0888aa07976c9. 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/USHM91480985.
Great, Cool (feat. Blake Daniel & Ben Fankhauser)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74eecb026697d54469e9ea9c0a1c6d2abf60da26620515e73b24decc04b37db. 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/USHM91480986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ead8e1f498f8c81b9bd7ae205552b0d5241bcb3aa6484d32f028ce5fbb313a6. 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/USHM91480987.
Something to Fight For (feat. Zak Resnick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfd9aa36abb870aa9f68b76bae6910a5b63701882639174b9f7d8f186b1ddc1. 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/USHM91480990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85456a08bfd49e56c764a218e7813a537c6e9253af8dbd3a73b9c2ca61f409e. 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/USHM91480991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbee1ddafc2a15fea097074bb62aa993228314b095410764bb307516d756bc2f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USHM91480983.
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
Constellation (feat. Adrienne Warren & Broadway Dreams Foundation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23054b600661a4b2fba592dbb18f09189a9a5ebcdbecfcd5d5011da34b52dae3. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USHM91480988.
Break from the Line (feat. Taylor Louderman & Natalie Weiss)
Love Me, Love Me Not (Acoustic Duet Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948528a01870d6af602940aafb9a32e3a32b7b868e274243e63e6bd6293bbd32. 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/USHM91937170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02b8bc0fe5a0d72221b789476de337ed400df6ed65140cc26f315860034f53d. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USCGH2153259.
Heartbreakers in Hell (The First Date Mixtape)
In Pieces: A New Musical (Highlights) [Deluxe Edition]