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 0xedfd12d39db3885444375ed791cdbe5ee0148fc24ff5154e4aef7a8dc73f6497. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29b335f6-cba3-42f5-bf8e-19e4684595dc.json and https://artists.proofprofile.net/proofs/artist/29b335f6-cba3-42f5-bf8e-19e4684595dc.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 0xde18069f8d4024f6918ff7a702186aa33526a610a4fda43ad7a26093dab4103d. 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/USWD10629436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948825c628a0cd49e70f5a72cd4cfb456bd73e4839eb8edc50dce8bab41d670b. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USWD10423791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbad0eaef9871abbae3062d2345eb592e3bd0c63593a1706e5297525704b22aa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10629851.
Walt Disney Records The Legacy Collection: Mary Poppins
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097fa3e8b0c24511d0aea40557f6531f9807de560b4ceff36778e99f41dbbbe5. 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/USWD11467798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1046080eb04bd55dc8328cf62524d1f9b3abe6a6329a35a3872f14837d7ba13. 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/USWD11467802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbcc4d8f13dfbaf6babf6c261c9767342e7ef798446b29aaf3009833b9a1d3f. 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/USWD11467806.
Walt Disney Records The Legacy Collection: Cinderella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08982af7c94ffa4af4b4a43ef00fc0b5c7262255a4437a321675b91efecdd46e. 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/USWD11263793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6213b8b63962795b3d79678b7c5554a63b95d2d8065853461d5b8f1ffb2c5888. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USWD11263898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2d96a077ccc2d3993b1607c5563fb7b1c9b317f81d44cf54a17cdff495ab5f. 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/USWD11263902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08982af7c94ffa4af4b4a43ef00fc0b5c7262255a4437a321675b91efecdd46e. 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/USWD11263793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6213b8b63962795b3d79678b7c5554a63b95d2d8065853461d5b8f1ffb2c5888. 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/USWD11263898.
Walt Disney Records The Legacy Collection: Pinocchio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888dc09cf2f17d5a26dc5c5fcf83585f4dcb704321071c82cbb80f86766c1327. 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/USWD11469211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd7e31e8a481a51674072fa338b29c5c0af10cfa4e94f1955b2211978065fae. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:48Z), 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/USWD11469212.
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
Walt Disney Records The Legacy Collection: Sleeping Beauty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430353fbd617f5151cdd360c19108eb725fca1ac809893778ea0f0542d6d85a2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USWD11468606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b0d819cd0c8540567942eef3c0de9fde80e272c17d4e47f9adb03a48adf082. 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/USWD11467804.
Children of the Heavenly Father (feat. Jeff Gunn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba444bd4683a3fb04b1586d2fa0e6c5b7bc91e43db33ad31411a259eedd08d59. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USCGH1508471.