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 0x53f8f2bf0e7473324c8fce8805c017ed844e0bf18ee4b01b0a96009621ccc76c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03bbd9af-c121-4497-aa93-87217d519b23.json and https://artists.proofprofile.net/proofs/artist/03bbd9af-c121-4497-aa93-87217d519b23.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 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 0x3430d87ccfd57882bd8f287d654bcd5714da70066f0371002188f77e49b435ee. 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/GBQG52112201.
Arise, my Muse : Arise, my muse, and to thy tuneful lyre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40223acb240d9627aa500835c8e0e7fcac4fde602638f9d71d7718fdabd4fa4b. 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/GBQG52112202.
Arise, my Muse : Ye sons of music, raise your voices high
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c503854c6d6cde5bdc660401482ddb1d2de254b0cd3022eed42d05eccc17924. 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/GBQG52112203.
Arise, my Muse : Then sound your instruments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8cf4b0262d1260d370110498ac57cc3ae5a679b162d1c03624cdf590a9cb77. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBQG52112204.
Arise, my Muse : See how the glitt'ring ruler of the day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a28afc01b25660450e74e1ddbc4c5a284c9b9e5c78aae9bf43c3d5f5dfcd826. 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/GBQG52112205.
Arise, my Muse : Hail, gracious Gloriana, hail
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf265e92d5e4af332ff4b921adaaebcb435546b373ced053158c1b4563bca8a56. 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/GBQG52112206.
Arise, my Muse : And since the time's distress
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957db522b5d4a1f02808d90880ccd9b7e7e67ba04269cbf4afe02f7db65c5f9e. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBQG52112207.
Arise, my Muse : To quell his country's foes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c872d8d1dd44ed92cff66d4087356edb7fa7cff6978efa3697039a5e82a0e7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBQG52112208.
Arise, my Muse : But ah, I see Eusebia drown'd in tears
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d64c71d975ffdfb929b8f4b3cdc8040d68c66e397dd62ec02511ea6e3e5349. 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/GBQG52112209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d2b5b76b83ddd4b6c38e58ead5a96ab86b27e57df55b3358ee881a54dffdde. 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/GBQG52112210.
Love's goddess sure : Love's goddess sure was blind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8e713422d51a9e5cd955bcc847d8c8bbbde84622f3e5023b7a516b3e00182f. 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/GBQG52112211.
Love's goddess sure : Those eyes, that form, that lofty mien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b6388a9a42ff0027b4788e16a31213efd301060ad4b196aa780b5e99d4b690. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBQG52112212.
Love's goddess sure : Sweetness of nature
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafb102d5883a8717f550410a2ede96bfa87b4219e4e3c4932ff7b0fa226e0b7. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBQG52112213.
Love's goddess sure : Long may she reign over this isle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94306e401e8a2df85abf179442608cceded85d17943695dc01dac7a268513a9. 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/GBQG52112214.
Love's goddess sure : May her blest example chase
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362c404f782326d5db310c1b4523c0136eaf8e75bc86acbfae2764d024dc0345. 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/GBQG52112215.
Love's goddess sure : Many such days may she behold
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe8510edf60c8219e579afc89bb602bfb03704ccd4f7ffaa0cc7622ae7bca50. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBQG52112216.
Love's goddess sure : As much as we below shall mourn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827f5956022d7adb3918d3951ee4be4264f737630ddf6e37106d66297212efb7. 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/GBQG52112218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d621ff844424cc2aa0b76152be5c492208c89f6e9fe04e4a57cbeb669cb1bb. 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/GBQG52112219.