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 0xf3acdd08f0b4a04faccc97ff7d5e8207b391bac8eb9aa74b92c9d2ed56f997df. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed7fbbac-cc16-4ef2-b246-ba27cd0a405c.json and https://artists.proofprofile.net/proofs/artist/ed7fbbac-cc16-4ef2-b246-ba27cd0a405c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Darkeport (Actual Play Soundtrack) Vol. I
The Lord of the Rings: Adventure Card Game (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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed650c1b9f4932e9e19e0a279259a9791f31ca3a1841216842e27c5d585b09b. 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/QZTB52293967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09637abb39648ced1fde6a5ed7d2438beb64a66ed4d4791dd031a76126140bce. 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/QZTB52293968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6555110d69e57abf023f93248b3b3dc983fa500760b2889dae98674709f9213. 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/QZTB52293976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9bde8d612fc71ed568272c9fa650865eeda866d4a925a42bd5080c2055c2fd. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZTB52293958.
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 0x4f3dd27ef61b070497d11e343ad49e5b97f1e22a725174ea48132fc506aa2763. 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/QZTB52293959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0367d36d611e74ab383d415868bdf644fa96eff37b0e4c06c9c98b449daff54. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZTB52293963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e52c534212926e6ee9ccc8b9f72c20473cda60758855cb4f0509080ae68ecb3. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZTB52293965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7870256ee63133137f7ce24b8fd56d18d38ed8e202afc188772f800eda03c20. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTB52293966.
Descent: Legends of the Dark (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf639b29dae1251bb7d3efefa590e873ac0eef0517366d9f17fb81ce28a62cfa0. 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/QZTB52295568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74589152f03d8fc4106b3cb3d578799ea654cc86c13643a25f78886deb587bc4. 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/QZTB52295572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65578ad34b0d4fc39fd4a076bfedd5e07e4523d296777d87d16dd9a9a98cab7d. 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/QZTB52295573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4472388b21ceb4caa1fca402107472e479d88e14fa74aaa9e98b6c2ff5674ac9. 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/QZTB52295574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162f5b692c3c41208b5f5a3fdfbb12d426c1e2ee9343e93ea1d2c5d430b5b347. 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/QZTB52295569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142e30fa1a529debfe8910c65ad7db98f4e4dfa6f66ab00a52186b8daf9016d3. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZTB52295570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac2b43362a1c896eb7ce4b1c296e82f07e3e95e3d4e4b004198217d0b1c92dc. 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/QZTB52295571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6163ed8489ed248075e31717e6a7b12518d9c41f526ab407482e61d0aa7ef4. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZTB52295575.
Shadow and Ruin (A Dark Fantasy Collection)
Take Thy Place And Rust (Epic Hybrid Fantasy)
The Hidden River (Original Film Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990fdcc6e528c936de9a540eff4e997467b47a0e0623fe9f59ee3789a41ccb73. 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/QZTB22333549.