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 0x7bc09b03186811e1907989c405e66794d6cf0b252d5325abea400a1a63b2e431. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d9b081c-4b52-4db7-999c-7e93a0ac9c2a.json and https://artists.proofprofile.net/proofs/artist/2d9b081c-4b52-4db7-999c-7e93a0ac9c2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
High School Musical: The Musical: The Series (Original Soundtrack/Season 3)
Cast of High School Musical: The Musical: The Series
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 0x4f02971a82533e53610a0aae85f1e9e1d7d4819e53331a7ea17ce37a54345eb9. 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/USWD12215922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9593511d068d6fbf1c15acb85682baa560c843d1070d861865a04ebf83082c55. 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/USWD12215923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe883f004f024c6430baa3edb0a9cdf947a9e6ab0a0f90e34087d4b5ad9b6034. 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/USWD12215924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533a72c4db4e24ce6b7f96fbc341a34643e2871b0ab4fb28acd20f994ba7e490. 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/USWD12216370.
For the First Time in Forever/Do You Want to Build a Snowman? Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac518f33a2b234c49153488e0e34e2b15fc611000e096293189ad9fc333626fe. 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/USWD12216371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f2a5a5cd240e620e3d11ef43e0b1374cc4703443121d881588799492f2aa41. 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/USWD12216372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1302e5f1ab00567e47578fba994eb0354c2681f7bf453d9bc91005b661f798. 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/USWD12216373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7456175521ef6e272f456101f3cc114c391797253a1ca6e4f5670f188dbe27ac. 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/USWD12216374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649469142b884fe16ce47b0533680ef5bc8561cc20493fe21dbd4d86d17dc177. 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/USWD12216375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988d85fc7d7c87417446b088470df0f6140dc1abdc9c8cbb9fe36fa4a93f9bec. 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/USWD12216376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdf9cccf15424ad85b391fab7976b15c72cf24b193f6a05fe0aa2720271a0ba. 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/USWD12216377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173b81bf1b29719b62e786799eb6cff07a43f280ec39a22afc94256894d8bb20. 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/USWD12216378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f81c3970891373807777b633f8b77181f310c82622bf46da0a71a6b5ac939b. 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/USWD12216379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524c8e9725ee0d313c1fdbb3df37f47edd72309ee22291b4790603ec9b0a6c22. 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/USWD12216380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56a58c4391069574bc2f7866b7d1a75aa733178753580b3c9e671ec603baf86. 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/USWD12216381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4de5736f77e7de924f826c001b46c4d076402fe85ac651feedbd1535d206fbf. 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/USWD12215833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd69c71b51cee810edfe1c51a635c444276600d2f645a8b5f46a54aa1b89049. 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/USWD12216382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba042bc2a1b846408c9e9d079c08e1bf923bf48076b2764e025643dfce7842e5. 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/USWD12216383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341afb7ce04744ce98c8ad9c3f7befc90b9e7b470131e8c9f2ada585139d6096. 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/USWD12216384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e7107f754361b31e3607fad040dd2b15fe2a9f1432350968b977d8609470e. 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/USWD12216385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855d79dd11c242768bfcb2d494cc5a077800b72b0cb48ace1c43eed7f8c28049. 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/USWD12216386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82eecf9f2595fa50fa5cd5c5ea537000e487448f8e97e3b0b7bcaab56301035. 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/USWD12216387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b5bcab9942d6c7114cf1eba39ef24400cddc72d0ca9855c21336484967ccc5. 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/USWD12216388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b87af158411417538f430c84715cf14b867b8d6d00758b2d331bc9877b5254e. 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/USWD12216389.
High School Musical: The Musical: The Series Season 3 (Episode 5) [From "High School Musical: The Musical: The Series (Season 3)"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173b81bf1b29719b62e786799eb6cff07a43f280ec39a22afc94256894d8bb20. 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/USWD12216378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f81c3970891373807777b633f8b77181f310c82622bf46da0a71a6b5ac939b. 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/USWD12216379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524c8e9725ee0d313c1fdbb3df37f47edd72309ee22291b4790603ec9b0a6c22. 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/USWD12216380.
Better Nate Than Ever (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a93efec0c69aeb13255fc2076919412546d5f44c6acdb2007a0296c09804d2. 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/USHR12243113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5045753d3c7cb5686abdd64d8f76c868f6ac126185ce7cf3201fe356fe4af2c1. 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/USHR12243114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492783f31337d39c8eb5520751205b8350f0f3f4b67d7213026aa154b95ca457. 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/USHR12243115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e98386e4610dafda2c698e58271a11df8930a6fbcb39697e4a084292d0e863. 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/USHR12243116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930f39ca393e2285389f9fbb6dae4e2287f86593dfe96bc9c09ead9a037638f3. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USHR12243117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3821cf00079436a3dbea869b2c41dfaf3fb28610294f273bd4d6bf9a8c018cf. 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/USHR12243118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0b0381b79907d73a30f27e7158bee77ce5245fed9d0ce9057b846895fe16ef. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHR12243119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ab96fe155ed206ecc4290efb1ef26ba80b59eadb369c5bdc159a0c0478f5b2. 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/USHR12243127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4919ff075b2ff2cba16cfc34782bea4a415f9b82d97ddafed905c66576b371a7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHR12243129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df80930d05480d85f1ca4df0bcd54fcdf145af42b2430f90fc963cd48fdb2e2. 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/USWB10902426.