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 0xdbbeaccb8b34bd53f4e0c70ce3f8d2962a31979a7423eddc4954cd49ed627e15. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e81b5bcb-6dbb-4a62-a859-6c3c66af2239.json and https://artists.proofprofile.net/proofs/artist/e81b5bcb-6dbb-4a62-a859-6c3c66af2239.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
White Girl in Danger: A New Musical (Original Off-Broadway Cast Recording)
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 0x5daa3eb4c24cf011bf8b07c1b494c9ddcc4064467862cac9cc568b20bb3f225f. 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/US6W62410172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a58e1733b9140e7c3a59440d3aa7b55dc0052e4e6dd47a193ef0eb1318114a2. 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/US6W62410175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d21b39cf2c5b962a68be449097a105b64e5e3c54e456668543a0851c5482a8. 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/US6W62410177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6510486b21b222f941942fd06dfa7bbcbe3ebb67b063017dd53c7ea5d7f4c71. 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/US6W62410180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4183ef486778d91c6aa6e2ad3953a8ab1cebb5a6ce15ce435ef0e2fc2032fa37. 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/US6W62410182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e3f45c72195585ca2f52929eefda57045e7b92a8c66c6403dda7a6510fa127. 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/US6W62410184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3404948795db065f67d4ea65b1fc5c56692761fb174b5ee5817abf0f2bbdbcca. 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/US6W62410186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9b4d826d770e1a7bc00cc4ffd9eb5e90221612abb7380c8208ca90cba7f246. 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/US6W62410187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a78242b91da144d71249b552ec0b703dff4ff29bd32c806d83014c3f7ffca2. 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/US6W62410174.
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 0xb5068763c96187ff4f94bbd010a66da915f6e2007930169a3db2a62680c06138. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/US6W62410176.
The Original Off-Broadway Cast of White Girl In Danger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb1b025ed5171ff6746fec0e544c5094ae16dbc27b82991dafa9c29e4994f5a. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/US6W62410178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f681b089490a227a53d90629b75d4db642da0082f3275e9c45bc801715a71c3. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/US6W62410179.
The Killer Still Hasn't Come for Me/White Girl in Danger Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63b89ef263bdc7d27eb6a45ff50e7937a2a4a37661167951590480ccb575087. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/US6W62410185.